CN120433814B - Antenna weight adjustment method, electronic device and readable storage medium - Google Patents
Antenna weight adjustment method, electronic device and readable storage mediumInfo
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Abstract
The application discloses an antenna weight adjusting method, electronic equipment and a readable storage medium, wherein the method comprises the steps of obtaining first correction information, wherein the first correction information is determined based on composite radiation information, the composite radiation information is used for mapping target radiation information corresponding to a plurality of antenna channels in a target angle range, the target radiation information is determined based on first preset radiation information corresponding to the plurality of antenna channels in a first angle range and first actually measured radiation information corresponding to the plurality of antenna channels in a second angle range, the target angle range comprises the first angle range and the second angle range, the first preset antenna weight is corrected through the first correction information, and the first target antenna weight is obtained, wherein the first target antenna weight is used for optimizing antenna performances corresponding to the plurality of antenna channels in the first angle range.
Description
Technical Field
The embodiment of the application relates to the technical field of wireless communication, in particular to an antenna weight adjusting method, electronic equipment and a readable storage medium.
Background
In a multi-antenna system, the performance of the antenna is generally improved by using a beamforming technology, wherein the working principle of the beamforming technology is to adjust the phases and amplitudes of signals transmitted by a plurality of antennas, so that the signals are enhanced in a specific direction and weakened or counteracted in other directions, thereby improving the directional transmission efficiency of the signals, reducing interference and enhancing the coverage range and reliability of the signals. When the antenna is in the conditions of small array spacing, shielding and the like, the radiation pattern of the antenna array is distorted, so that the synthesized beam has the problems of side lobe lifting, zero depth missing, inaccurate beam pointing and the like, and the required beam cannot be synthesized. Therefore, how to optimize the weight of the antenna so that the synthesized beam meets the actual requirement is the technical problem to be solved by the application.
Disclosure of Invention
The embodiment of the application provides an antenna weight adjusting method, electronic equipment and a readable storage medium, which can enable a synthesized wave beam to meet actual demands by optimizing the antenna weight.
In order to solve the technical problems, the application is realized as follows:
The first aspect provides an antenna weight adjustment method, which comprises the steps of obtaining first correction information, wherein the first correction information is determined based on composite radiation information, the composite radiation information is used for mapping target radiation information corresponding to a plurality of antenna channels in a target angle range, the target radiation information is determined based on first preset radiation information corresponding to the plurality of antenna channels in a first angle range and first actually measured radiation information corresponding to the plurality of antenna channels in a second angle range, the target angle range comprises the first angle range and the second angle range, the first preset antenna weight is corrected through the first correction information, and the first target antenna weight is obtained, wherein the first target antenna weight is used for optimizing antenna performance corresponding to the plurality of antenna channels in the first angle range.
In a second aspect, there is provided an electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the first aspect.
In a third aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.
In a fourth aspect, there is provided a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the steps of the method according to the first aspect.
In the embodiment of the application, first correction information is obtained, wherein the first correction information is determined based on composite radiation information, the composite radiation information is used for mapping target radiation information corresponding to a plurality of antenna channels in a target angle range, the target radiation information is determined based on first preset radiation information corresponding to the plurality of antenna channels in a first angle range and first actually measured radiation information corresponding to the plurality of antenna channels in a second angle range, the target angle range comprises the first angle range and the second angle range, the first preset antenna weight is corrected through the first correction information to obtain a first target antenna weight, and the first target antenna weight is used for optimizing antenna performances corresponding to the plurality of antenna channels in the first angle range, so that the optimization of the antenna performances of the plurality of antenna channels in local angles is realized by optimizing the antenna performances of the first angle range, and the plurality of antenna channels can be ensured to keep the original radiation characteristics in other angle ranges while the antenna performances of the plurality of antenna channels are optimized, so that the synthesized beam meets actual requirements.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic flow chart of a method for adjusting antenna weights according to an exemplary embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a simulation of beam gain provided by an exemplary embodiment of the present application;
Fig. 3 shows a schematic diagram of beamforming according to an exemplary embodiment of the present application;
fig. 4 shows another schematic diagram of beamforming provided by an exemplary embodiment of the present application;
Fig. 5 shows yet another schematic diagram of beamforming provided by an exemplary embodiment of the present application;
fig. 6 is a schematic flow chart of another method for adjusting antenna weights according to an exemplary embodiment of the present application;
Fig. 7 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
Fig. 1 is a schematic flow chart of a method for adjusting antenna weights according to an exemplary embodiment of the present application, where the method may be performed by an electronic device, and the electronic device may include a terminal device and a network side device. In other words, the method may be performed by software or hardware installed on an electronic device, the method may comprise the steps of:
S110, acquiring first correction information.
The data structure of the first correction information may be a matrix, an array, a set, or other data structures. The first correction information is used for correcting a first preset antenna weight corresponding to the antenna array, the first preset antenna weight is an ideal weight or a predicted weight corresponding to the antenna array, and it can be understood that in practical application, the first preset antenna weight is influenced by environmental or hardware factors, so that deviation between beam information obtained after the antenna array performs beam forming based on the first preset antenna weight and ideal design is generated, and distortion can be compensated by correcting the first preset antenna weight through the first correction information, thereby realizing ideal beam forming effect. It should be noted that, the data structure of the first preset antenna weight may be a matrix, an array, a set or other data structures, where the first preset antenna weight includes preset antenna weights corresponding to each antenna channel in the antenna array, different antenna channels correspond to different preset antenna weights, and antenna units in the same antenna channel correspond to the same preset antenna weight. The first correction information is determined based on composite radiation information, the composite radiation information is used for mapping target radiation information corresponding to the plurality of antenna channels in a target angle range, the target radiation information is determined based on first preset radiation information corresponding to the plurality of antenna channels in a first angle range and first actually measured radiation information corresponding to the plurality of antenna channels in a second angle range, and the target angle range comprises the first angle range and the second angle range. With respect to the antenna channels, it may be understood that the antenna array for which the method for adjusting the antenna weights shown in fig. 1 is directed includes a plurality of antenna channels, each antenna channel including at least one antenna unit. Regarding the radiation information, it may be understood that after beamforming is performed, each antenna channel has corresponding actually measured radiation information, where the actually measured radiation information is used to reflect the actual radiation characteristic of the antenna channel after beamforming is performed based on a corresponding preset antenna weight in a first preset antenna weight, where the first actually measured radiation information is actually measured radiation information corresponding to the antenna channel in a second angle range. In addition, each antenna channel corresponds to preset radiation information, and the preset radiation information is used for reflecting expected or ideal radiation characteristics of the antenna channel after beam forming based on a corresponding preset antenna weight in first preset antenna weights, wherein the first preset radiation information is the preset radiation information corresponding to the antenna channel in a first angle range. In an exemplary embodiment, the radiation information may be a beam pattern describing radiation characteristics of the antenna channel in different directions, which may be described by beam characteristic parameters, wherein the beam characteristic parameters may include at least one of beam pointing angle, radiation intensity distribution, phase distribution, beam gain.
In the embodiment of the application, the target radiation information is determined based on first preset radiation information respectively corresponding to a first angle range and first actually measured radiation information respectively corresponding to a second angle range of a plurality of antenna channels, and the target angle range comprises the first angle range and the second angle range. That is, the target angle range is the set overall radiation angle range of the antenna array, the first angle range is the angle range in which the antenna performance is required to be optimized in the target angle range, and the second angle range is the angle range in which the antenna performance is not required to be optimized in the target angle range. If the antenna performance of the antenna array in the first angle range is optimized based on only the first preset radiation information in the first angle range, gain variation of the antenna performance in other angles may be caused, thereby affecting the antenna performance. Therefore, the composite radiation information is determined according to the first preset radiation information respectively corresponding to the plurality of antenna channels in the first angle range and the first actually measured radiation information respectively corresponding to the plurality of antenna channels in the second angle range, so that the plurality of antenna channels can be ensured to keep the original radiation characteristics in other angle ranges while the first angle range is optimized.
In addition, since the composite radiation information is used to map target radiation information corresponding to a plurality of antenna channels in a target angle range, the first correction information determined based on the composite radiation information corresponds to the plurality of antenna channels, that is, antenna elements in all antenna channels share the same first correction information.
In an exemplary embodiment, the data structure of the first preset radiation information and the first measured radiation information may be a matrix, an array, a set or other data structures.
S120, correcting the first preset antenna weight through the first correction information to obtain a first target antenna weight.
The first target antenna weight is used for optimizing antenna performances of the plurality of antenna channels corresponding to the first angle range. Each of the first target antenna weight and the first preset antenna weight includes an amplitude parameter and a phase parameter.
The first preset antenna weight includes antenna weights of a plurality of antenna channels under preset conditions, i.e., expected or ideal antenna weights, and it can be understood that the first preset antenna weight can enable the plurality of antenna channels to achieve optimal antenna performance under the preset conditions, i.e., after beam forming is performed, actually measured radiation information corresponding to each antenna channel is consistent with preset radiation information. Therefore, the first target antenna weight is determined by optimizing the first preset antenna weight through the first correction information, and thus the antenna weight of each antenna channel is adjusted, so that the antenna performance of the antenna array in the first angle range is as close as possible to the expected or ideal antenna performance while the actual requirement is met.
The data structure of the first target antenna weight may be a matrix, an array, a set or other data structures, where the first target antenna weight includes a target antenna weight corresponding to each antenna channel in the antenna array, different antenna channels correspond to different target antenna weights, and antenna units in the same antenna channel correspond to the same target antenna weight. In the beam forming process, signals of all antenna units in each antenna channel are weighted based on a target antenna weight corresponding to each antenna channel in the first target antenna weight, so that the whole antenna array is controlled to meet specific radiation requirements in different angle ranges, namely, the antenna performances corresponding to the plurality of antenna channels in the first angle range are optimized, so that the radiation characteristics in the first angle range are adjusted, and meanwhile, the antenna performances of the plurality of antenna channels in the second angle range are not optimized, namely, the radiation characteristics are kept unchanged. As shown in fig. 2, a simulation diagram of beam gain is illustrated, taking radiation information as a beam pattern, where in an angle interval of 0 ° -25 °, a side lobe gain of a synthesized beam, i.e. "beam 0-ideal", based on a first preset antenna weight of a preset beam pattern is-17.5 dB, and a side lobe gain of a synthesized beam, i.e. "beam 0-actual", based on a first preset antenna weight of an actual beam pattern is about-14.5 dB, because distortion of the actual beam pattern causes side lobe deterioration in the angle interval. According to the method for adjusting the antenna weight, the obtained first target antenna weight is loaded on the side lobe gain of the synthesized beam obtained by actually measuring the beam direction diagram, namely the beam 0-mapping side lobe gain is about-17.5 dB, so that 3dB side lobe gain inhibition is obtained, meanwhile, the direction diagrams in other angle ranges are not changed greatly, and the gain of the antenna synthesized beam is not deteriorated. Assuming that the antenna array includes 8 antenna channels, each antenna channel includes 1 antenna unit, the power of each antenna unit is 1W, if the antenna weight only considers the amplitude parameter, the amplitude parameter in the first preset antenna weight corresponding to the 8 antenna channels is set to be [0.58,0.66,0.875,1,1,0.875,0.66,0.58], the total power corresponding to the antenna array is ：1×0.582+1×0.662+1×0.8752+1×12+1×12+1×0.8752+1×0.662+1×0.582=5.07525W., if each antenna unit is preset to be full power, the total power is 8W, and then the power loss corresponding to the first preset antenna weight isAfter the weight optimization is carried out, the amplitude parameter in the first target antenna weight corresponding to the 8 antenna channels is [0.493,0.806,0.946,0.737,0.978,1,0.666,0.595], and similarly, the power loss is about-1.97 dB, so that the optimized weight is used for beam forming, and almost no power loss exists.
In the embodiment of the application, the first correction information is obtained, wherein the first correction information is determined based on composite radiation information, the composite radiation information is used for mapping target radiation information corresponding to a plurality of antenna channels in a target angle range, the target radiation information is determined based on first preset radiation information respectively corresponding to the plurality of antenna channels in the first angle range and first actually measured radiation information respectively corresponding to the plurality of antenna channels in the second angle range, the target angle range comprises the first angle range and the second angle range, the first preset antenna weight is corrected through the first correction information, and the first target antenna weight is obtained, wherein the first target antenna weight is used for optimizing the antenna performance corresponding to the plurality of antenna channels in the first angle range, so that the optimization of the antenna performance of the plurality of antenna channels in the local angle range is realized through optimizing the antenna weight, and the original radiation characteristics of the plurality of antenna channels in other angle ranges are ensured while the antenna performance of the first angle range is optimized, so that the synthesized beam meets the actual requirement.
In an exemplary embodiment, acquiring the first correction information includes determining the first correction information according to the composite radiation information and the second actually measured radiation information, where the first correction information is used to describe a difference of at least one beam characteristic parameter between the second actually measured radiation information and the composite radiation information in a target angle range, the beam characteristic parameter includes at least one of a beam pointing angle, a radiation intensity distribution, a phase distribution, and a beam gain, the second actually measured radiation information is used to map third actually measured radiation information corresponding to each of the plurality of antenna channels in the target angle range, and the third actually measured radiation information includes the first actually measured radiation information.
It will be appreciated that each antenna channel corresponds to the third measured radiation information in the target angular range and corresponds to the first measured radiation information in the second angular range, respectively, and therefore the third measured radiation information in the target angular range for each antenna channel includes the first measured radiation information in the second angular range. The second actually measured radiation information is mapped by the third actually measured radiation information corresponding to each antenna channel.
In the embodiment of the application, the composite radiation information is used for mapping target radiation information corresponding to the plurality of antenna channels in the target angle range, and the target radiation information is determined based on first preset radiation information corresponding to the plurality of antenna channels in the first angle range and first actually measured radiation information corresponding to the plurality of antenna channels in the second angle range, that is, the composite radiation information is mapped by the first preset radiation information in the first angle range and the first actually measured radiation information in the second angle range. Therefore, the composite radiation information and the second actually measured radiation information both correspond to the target angle range, the difference between the two is radiation information corresponding to the first angle range, in the composite radiation information, the radiation information corresponding to the first angle range is first preset radiation information of the plurality of antenna channels, in the second actually measured radiation information, the radiation information corresponding to the first angle range is sixth actually measured radiation information of the plurality of antenna channels, wherein the sixth actually measured radiation information is actually measured radiation information of the third actually measured radiation information which is not the first actually measured radiation information, namely, the third actually measured radiation information corresponding to each antenna channel comprises the sixth actually measured radiation information corresponding to the first angle range and the first actually measured radiation information corresponding to the second angle range, and therefore, the difference between the composite radiation information and the second actually measured radiation information can be described through first correction information, namely, the first correction information is used for describing the difference of at least one beam characteristic parameter between the second actually measured radiation information and the composite radiation information in the target angle range. Illustratively, the determination of the first correction information is schematically illustrated below by the following expression:
wherein, in the expressions (1) to (4), Representing composite radiation information; representing second preset radiation information, wherein the second preset radiation information is used for mapping third preset radiation information corresponding to the plurality of antenna channels in the target angle range respectively, and the third preset radiation information comprises the first preset radiation information; Representing the preset radiation information corresponding to the first angle range in the second preset radiation information, Representing a first angular range; Representing a second measured radiation information item, Representing measured radiation information corresponding to a second angle range in the second measured radiation information,Representing a second angular range; representing first correction information; representing a first preset antenna weight; Representing the first target antenna weights. It should be noted that the above expression is only used to illustrate the reasoning process, belongs to an exemplary illustration, does not constitute a strict mathematical equation, and should not constitute a limitation of the embodiment of the present application, and will not be described in detail later.
Wherein, in the above expression (2), the first correction information is usedAnd second measured radiation informationCan determine composite radiation informationDue to the first correction informationFor describing the second measured radiation informationAnd composite radiation informationDifferences in at least one beam characteristic parameter between the target angular ranges, and therefore, based on the differences and the second measured radiation informationCan determine composite radiation information. Then, based on this consideration, with reference to the above expression (3), it is possible to obtain information on the second actually measured radiationAnd composite radiation informationDetermining first correction information. By thus determining composite radiation informationAnd second measured radiation informationThe difference between the antenna weights is obtained to obtain a preset antenna weight, namely a first preset antenna weightAnd the actually required antenna weight, namely the first target antenna weightA difference between the first correction information. For example, as shown in fig. 3, when the radiation pattern of the antenna is not distorted, the desired beam may be synthesized when the antenna unit is excited by using the first preset antenna weight, and as shown in fig. 4, when the radiation pattern of the antenna is distorted, the desired beam may not be synthesized when the antenna unit is excited by using the first preset antenna weight, and the phenomena include, but are not limited to, side lobe lifting, zero depth loss, inaccurate beam pointing, and the like. Then, as shown in fig. 5, by obtaining a mapping relationship between a preset antenna weight, i.e., a first preset antenna weight, and an actual required antenna weight, i.e., a first target antenna weight, so as to determine the actual required antenna weight, i.e., the first target antenna weight, then when the antenna unit is excited by using the first target antenna weight, a required beam may be synthesized, where the mapping relationship between the preset antenna weight and the actual required antenna weight may be obtained by determining a mapping relationship between the composite radiation information and the second actually measured radiation information. It can be understood that the second actually measured radiation information and the composite radiation information are both aimed at the same antenna array, and different weight settings can lead to different radiation characteristics, so as to form different radiation information, so that the finally synthesized beam information is different, therefore, the difference between the second actually measured radiation information and the composite radiation information can be used for representing the difference between the preset antenna weight and the actual antenna weight, and the mapping relationship between the preset antenna weight, namely the first preset antenna weight, and the actually required antenna weight, namely the first target antenna weight, is obtained by determining the mapping relationship between the second actually measured radiation information and the composite radiation information.
In another exemplary embodiment, the first preset antenna weight is corrected through the first correction information to obtain a first target antenna weight, which includes adjusting the first preset antenna weight according to the first correction information to obtain the first target antenna weight.
Illustratively, with continued reference to expression (4) above, a first target antenna weightAnd a first preset antenna weightMapping relation between can pass through the first correction informationRepresenting, therefore, in the case of determining the first correction information and the first preset antenna weight, the first target antenna weight may be obtained:。
In an exemplary embodiment, acquiring first correction information includes determining first correction information according to composite radiation information and a first preset antenna weight, where the first correction information is used to represent beam information under a first preset condition, the first preset antenna weight is an antenna weight corresponding to second preset radiation information, the second preset radiation information is used to map third preset radiation information corresponding to a plurality of antenna channels in a target angle range, and the third preset radiation information includes the first preset radiation information.
It may be appreciated that each antenna channel corresponds to the third preset radiation information in the target angle range, and corresponds to the first preset radiation information in the first angle range, and therefore, the third preset radiation information of each antenna channel in the target angle range includes the first preset radiation information in the first angle range. The third preset radiation information and the first preset radiation information both correspond to the same preset antenna weight, i.e. each third preset radiation information and the first preset radiation information in each antenna channel both correspond to the same preset antenna weight.
The first correction information is used for representing beam information under a first preset condition, namely preset beam information obtained after the antenna array performs beam forming based on a first preset antenna weight. The determination of the first correction information is schematically illustrated below by the following expression:
Wherein, in the expressions (5) and (6), The first correction information is indicated as such,Representing the composite radiation information of the radiation source,Representing a second measured radiation information item,Representing a first preset antenna weight; Representing the weight of the first target antenna, Representing the actual beam information.
From the above (6), the first correction information. Due to the first correction informationRepresenting preset beam information obtained after the antenna array performs beam forming based on a first preset antenna weight, and based on the corrected first preset antenna weight, namely a first target antenna weightAfter the wave beam shaping is carried out, the actual wave beam information is also obtainedThus, the actual beam informationShould be in accordance with preset beam informationIn agreement, i.eThen, the first and second processes, respectively,Based on this consideration, it can be determined that: accordingly, in the case of determining the first correction information, the first target antenna weight may be determined based on the first correction information and the second actually measured radiation information.
In another exemplary embodiment, correcting the first preset antenna weight through the first correction information to obtain a first target antenna weight includes determining the first target antenna weight according to the first correction information and the second actually measured radiation information, where the first target antenna weight is the optimized first preset antenna weight, the second actually measured radiation information is used for mapping third actually measured radiation information corresponding to the plurality of antenna channels in the target angle range, and the third actually measured radiation information includes the first actually measured radiation information.
As can be seen from the above-described embodiments,WhileThen:
;
thus, a first target antenna weight may be determined based on the first correction information and the second measured radiation information.
In an exemplary embodiment, before the first correction information is acquired, the method may further include the steps of:
Step 1, obtaining second correction information, wherein the second correction information is determined based on fourth preset radiation information, and the fourth preset radiation information is used for mapping fifth preset radiation information respectively corresponding to a plurality of antenna channels in a target angle range.
And 2, correcting a second preset antenna weight corresponding to the fourth preset radiation information through second correction information to obtain a second target antenna weight, wherein the second target antenna weight is used for optimizing antenna performances of the plurality of antenna channels corresponding to the target angle range.
The data structure of the second correction information may be a matrix, an array, a set, or other data structures. The second correction information is used for correcting a second preset antenna weight corresponding to the antenna array, the second preset antenna weight is an ideal weight or a predicted weight corresponding to the antenna array, and it can be understood that in practical application, the second preset antenna weight is influenced by environmental or hardware factors, so that the beam information obtained after the antenna array performs beam forming based on the second preset antenna weight deviates from an ideal design, and distortion can be compensated by correcting the second preset antenna weight through the second correction information, thereby realizing an ideal beam forming effect. In addition, the first preset antenna weight and the second preset antenna weight may be the same or different. It should be noted that the data structure of the second preset antenna weight may be a matrix, an array, a set or other data structures, where the second preset antenna weight includes preset antenna weights corresponding to each antenna channel in the antenna array, different antenna channels correspond to different preset antenna weights, and antenna units in the same antenna channel correspond to the same preset antenna weight. The data structure of the second target antenna weight may be a matrix, an array, a set or other data structures, where the second target antenna weight includes a target antenna weight corresponding to each antenna channel in the antenna array, different antenna channels correspond to different target antenna weights, and antenna units in the same antenna channel correspond to the same target antenna weight.
In this embodiment, before the optimization of the antenna performance of the local angle is performed, optimization of the antenna performance of the full angle may be performed, wherein the optimization of the antenna performance of the full angle is performed based on fourth preset radiation information, which is expected preset radiation information, and in addition, the fourth preset radiation information for optimization of the antenna performance of the full angle and the second preset radiation information for optimization of the antenna performance of the local angle may be the same or different.
In an exemplary embodiment, obtaining second correction information includes determining the second correction information according to fourth preset radiation information and fourth actually measured radiation information, where the second correction information is used to describe a difference of at least one beam characteristic parameter between the fourth actually measured radiation information and fourth preset radiation information in a target angle range, the beam characteristic parameter includes at least one of a beam pointing angle, a radiation intensity distribution, a phase distribution, and a beam gain, and the fourth actually measured radiation information is used to map fifth actually measured radiation information corresponding to each of a plurality of antenna channels in the target angle range.
It is understood that the fourth actually measured radiation information is used to map fifth actually measured radiation information corresponding to the plurality of antenna channels in the target angle range, and the difference between the fourth preset radiation information and the fourth actually measured radiation information may be described by the second correction information, that is, the second correction information is used to describe the difference of at least one beam characteristic parameter between the fourth actually measured radiation information and the fourth preset radiation information in the target angle range. The determination of the second correction information is schematically illustrated below by the following expression:
wherein, in the expressions (7) to (9), Representing fourth preset radiation information; representing fourth measured radiation information; Representing second correction information; representing a second preset antenna weight; representing the second target antenna weights.
Wherein, in the above expression (7), the second correction information is usedAnd fourth actually measured radiation informationCan determine fourth preset radiation informationBecause of the second correction informationFor describing fourth measured radiation informationAnd fourth preset radiation informationA difference in at least one beam characteristic parameter between the target angular ranges, and therefore, fourth preset radiation information may be determined based on the difference and the fourth measured radiation information. Then, based on this consideration, with reference to the above expression (8), the second correction information can be determined from the fourth actually measured radiation information and the fourth preset radiation information. Thus, the difference between the preset antenna weight and the actually required antenna weight is obtained by determining the difference between the fourth actually measured radiation information and the fourth preset radiation information, and the difference is the second correction information. It can be understood that the fourth actually measured radiation information and the fourth preset radiation information are both aimed at the same antenna array, and different weight settings result in different radiation characteristics, so as to form different radiation information, so that a difference between the fourth actually measured radiation information and the fourth preset radiation information can be used for characterizing a difference between the preset antenna weight and an actually required antenna weight, and a mapping relationship between the preset antenna weight, i.e. a second preset antenna weight, and the actually required antenna weight, i.e. a second target antenna weight, is obtained by determining a mapping relationship between the fourth actually measured radiation information and the fourth preset radiation information.
Further, in another exemplary embodiment, correcting the second preset antenna weight corresponding to the fourth preset radiation information through the second correction information to obtain a second target antenna weight includes adjusting the second preset antenna weight according to the second correction information to obtain the second target antenna weight.
Illustratively, with continued reference to the above expression (9), the mapping relationship between the second target antenna weight and the second preset antenna weight may be represented by the second correction information, and thus, in the case where the second correction information and the second preset antenna weight are determined, the second target antenna weight may be obtained:。
in yet another exemplary embodiment, obtaining the second correction information includes determining the second correction information based on the fourth preset radiation information and the second preset antenna weight, wherein the second correction information is used to represent the antenna radiation information under the second preset condition.
The second correction information is used for representing beam information under a first preset condition, namely preset beam information obtained after the antenna array performs beam forming based on a second preset antenna weight. The determination of the second correction information is schematically illustrated below by the following expression:
wherein, in the expressions (10) and (11), The second correction information is indicated as such,A fourth preset radiation information is indicated,Indicating a fourth measured radiation information item,Representing a second preset antenna weight; Representing the weight of the second target antenna, Representing the actual beam information.
As can be seen from the above (10), due to the second correction informationRepresenting preset beam information obtained after the antenna array performs beam forming based on a second preset antenna weight, and based on the corrected second preset antenna weight, namely a second target antenna weightAfter the wave beam forming is carried out, the actual wave beam information is obtainedThus, the actual beam informationShould be in accordance with preset beam informationIn agreement, i.eThen, the first and second processes, respectively,Based on this consideration, it can be determined that: Therefore, in the case of determining the second correction information, the second correction information and the fourth actually measured radiation information can be based on And determining a second target antenna weight.
Further, in another exemplary embodiment, correcting the second preset antenna weight corresponding to the fourth preset radiation information through the second correction information to obtain a second target antenna weight includes determining the second target antenna weight according to the second correction information and the fourth actually measured radiation information, where the second target antenna weight is the optimized second preset antenna weight, and the fourth actually measured radiation information is used for mapping fifth actually measured radiation information corresponding to the plurality of antenna channels in the target angle range respectively.
As can be seen from the above-described embodiments,Thus, based on the second correction informationAnd fourth measured radiation informationA second target antenna weight may be determined。
In an exemplary embodiment, acquiring the first correction information includes acquiring the first correction information in response to the first beamforming signal not meeting a preset requirement, where the first beamforming signal is obtained by performing beamforming on signals of a plurality of antenna channels after adjusting antenna weights corresponding to the plurality of antenna channels based on the second target antenna weight.
It can be understood that in the process of performing the full-angle antenna performance optimization, each antenna channel takes the corresponding antenna weight in the second target antenna weight as the optimized antenna weight, and then the signals of all the antenna units in each antenna channel are weighted based on the corresponding optimized antenna weight, so that the whole antenna array is controlled to meet the specific radiation requirement in the target angle range. However, when the waveform distortion of the beam pattern corresponding to the actually measured radiation information is large, a large power loss exists in the determined second target antenna weight, and the antenna gain is affected. For example, assuming that a certain antenna array channel includes 8 antenna channels, each antenna channel includes 1 antenna unit, the power of each antenna unit is 1w, if the antenna weights only consider the amplitude parameter, a second preset antenna weight corresponding to the 8 antenna channels is set to be [0.5,0.6,0.7,1,1,0.7,0.6,0.5], and the overall power of the antenna channel isAfter the performance of the full-angle antenna is optimized, the weight of the second target antenna corresponding to the 8 antenna channels is [0.2,0.2,0.2,1,1,0.2,0.2,0.2], and the overall power of the optimized antenna channels isCompared with the ideal overall power loss, the optimized overall power loss is 1.96W, so that in order to avoid the power loss, the first correction information can be acquired to optimize the antenna performance of the local angle under the condition that the first beam forming signal obtained after the full-angle antenna performance optimization does not meet the preset requirement.
In an exemplary embodiment, the first beam forming signal is a main lobe signal, the antenna performance includes a signal gain, the preset requirement includes that the signal gain of the first beam forming signal is greater than or equal to a fifth value and an absolute value of a difference between the signal gain of the first beam forming signal and the fifth value is greater than a sixth value, the fifth value is a signal gain of the main lobe signal corresponding to a plurality of antenna channels before antenna weight adjustment, the sixth value is used for measuring an adjustment amplitude of the signal gain of the second beam forming signal, the first beam forming signal is a side lobe signal, the antenna performance includes a radiation intensity, the preset requirement includes that the radiation intensity of the first beam forming signal is less than a seventh value and the absolute value of a difference between the radiation intensity of the first beam forming signal and the seventh value is greater than an eighth value, and the seventh value is used for measuring an adjustment amplitude of the radiation intensity of the first beam forming signal.
It can be understood that the method for adjusting the antenna weight provided by the embodiment of the application can realize the gain improvement of the main lobe signal and the reduction of the radiation intensity of the side lobe signal.
In an exemplary embodiment, the method further includes, in response to the second beamforming signal not meeting the preset requirement, re-determining second preset radiation information, and returning to execute the step of acquiring the first correction information until the second beamforming signal meets the preset requirement, where the second beamforming signal is obtained by performing beamforming on signals of the plurality of antenna channels after adjusting antenna weights corresponding to the plurality of antenna channels based on the first target antenna weight, where the second preset radiation information is used to map third preset radiation information corresponding to the plurality of antenna channels in the target angle range, and the third preset radiation information includes the first preset radiation information.
It can be understood that if the second beamforming signal does not meet the preset requirement, it is indicated that the second preset radiation information is not suitable for the environment where the current antenna array is located, and the second preset radiation information needs to be redetermined, so that the optimization of the antenna performance of the local angle is continued.
In an exemplary embodiment, the re-determining the second preset radiation information includes adjusting a first preset antenna weight corresponding to the second preset radiation information according to a target algorithm to obtain second preset radiation information corresponding to the adjusted first preset antenna weight. The target algorithm may include a genetic algorithm, a particle swarm algorithm, and the like.
In an exemplary embodiment, the second beam forming signal is a main lobe signal, the antenna performance includes a signal gain, the preset requirement includes that the signal gain of the second beam forming signal is greater than or equal to a first value and an absolute value of a difference between the signal gain of the second beam forming signal and the first value is greater than a second value, the first value is a signal gain of the main lobe signal corresponding to a plurality of antenna channels before antenna weight adjustment, the second value is used for measuring an adjustment amplitude of the signal gain of the second beam forming signal, the second beam forming signal is a side lobe signal, the antenna performance includes a radiation intensity, the preset requirement includes that the radiation intensity of the second beam forming signal is smaller than a third value and an absolute value of a difference between the radiation intensity of the second beam forming signal and the third value is greater than a fourth value, and the third value is a radiation intensity of the side lobe signal corresponding to the plurality of antenna channels before antenna weight adjustment, and the fourth value is used for measuring an adjustment amplitude of the radiation intensity of the second beam forming signal.
It can be understood that the method for adjusting the antenna weight provided by the embodiment of the application can realize the gain improvement of the main lobe signal and the reduction of the radiation intensity of the side lobe signal.
The embodiment of the application also provides another flow diagram of the method for adjusting the antenna weight, as shown in fig. 6, which may include the following steps:
s605, obtaining a first preset antenna weight.
The first preset antenna weight is an ideal weight or a predicted weight corresponding to the antenna array. The data structure of the first preset antenna weight may be a matrix, an array, a set or other data structures, where the first preset antenna weight includes preset antenna weights corresponding to each antenna channel in the antenna array, different antenna channels correspond to different preset antenna weights, and antenna units in the same antenna channel correspond to the same preset antenna weight.
And S610, acquiring second measured radiation information.
The second actually measured radiation information is used for mapping third actually measured radiation information corresponding to the plurality of antenna channels in the target angle range respectively, and each antenna channel corresponds to one piece of third actually measured radiation information in the target angle range respectively.
S615, generating first target beam information according to the first preset antenna weight and the second actually measured radiation information.
It may be appreciated that the second actually measured radiation information is radiation information obtained after beamforming based on a first preset antenna weight, and the beamformed first target beam information is determined based on the first preset antenna weight and the second actually measured radiation information.
S620, judging whether the first target beam information meets the requirement.
If the requirement is met, the first target antenna weight is determined to be a first preset antenna weight, and the process goes to S625, if the requirement is not met, the process goes to S630.
It may be appreciated that if the first target beam information meets the requirement, the first preset antenna weight does not need to be optimized, the first target antenna weight may be determined to be the first preset antenna weight, and if the first target beam information does not meet the requirement, the first preset antenna weight needs to be corrected, so that the first target beam information meets the requirement.
S625, outputting the first target antenna weight.
It can be understood that, in the beamforming process, signals of all antenna units in each antenna channel are weighted based on the first target antenna weight, so as to control the target beam information to meet the requirement.
S630, acquiring second preset radiation information.
The second preset radiation information is used for mapping third preset radiation information corresponding to the plurality of antenna channels in the target angle range, and the third preset radiation information is used for reflecting the radiation characteristics of the antenna channels after beam forming based on the first preset antenna weight, namely the expected or ideal radiation characteristics.
And S635, generating composite radiation information based on the target radiation information corresponding to each antenna channel.
It may be appreciated that the composite radiation information is configured to map target radiation information corresponding to the plurality of antenna channels in a target angle range, where the target radiation information is determined based on first preset radiation information corresponding to the plurality of antenna channels in a first angle range and first actually measured radiation information corresponding to the plurality of antenna channels in a second angle range, and the target angle range includes the first angle range and the second angle range, and the third preset radiation information includes the first preset radiation information.
And S640, determining a first target antenna weight value based on the first correction information determined by the composite radiation information and the second actually measured radiation information.
It will be appreciated that first correction information describing a difference between the composite radiation information and the second preset radiation information may be determined based on the composite radiation information and the second actually measured radiation information, and then the first preset antenna weight is corrected based on the first correction information to obtain the first target antenna weight.
And S645, generating second target beam information according to the first target antenna weight and the second actually measured radiation information.
It is understood that in this step, the second actually measured radiation information is radiation information obtained after beamforming based on the first target antenna weight, and the beamformed second target beam information is determined based on the first target antenna weight and the second actually measured radiation information.
S650, judging whether the second target beam information meets the requirement.
If the demand is satisfied, the process goes to S625, and if the demand is not satisfied, the process goes to S655.
It can be understood that if the second target beam information meets the requirement, the first target antenna weight is directly output without optimizing the first target antenna weight, and if the second target beam information does not meet the requirement, the first target antenna weight needs to be continuously corrected, so that the second target beam information meets the requirement.
And S655, optimizing the second preset radiation information according to a target algorithm.
The second preset radiation information is used for mapping third preset radiation information corresponding to the plurality of antenna channels in the target angle range respectively, and the third preset radiation information comprises the first preset radiation information. It can be understood that if the second target beam information does not meet the preset requirement, it is indicated that the second preset radiation information is not suitable for the environment where the current antenna array is located, and the second preset radiation information needs to be redetermined, so that the composite radiation information is redetermined, and further, the optimization of the antenna performance of the local angle is continued. In addition, the second preset radiation information corresponds to the first preset antenna weight, and the first preset antenna weight also changes along with the change of the second preset radiation information.
As shown in fig. 7, the embodiment of the present application further provides an electronic device 700, which includes a processor 710 and a memory 720, where the memory 720 stores a program or an instruction that can be executed on the processor 710, and the program or the instruction when executed by the processor 710 implements each process of the embodiments shown in fig. 1 to 6 and achieves the same technical effects, so that repetition is avoided and no further description is given here.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the processes of the embodiments shown in fig. 1 to fig. 6 are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.
Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium may include a computer-readable memory ROM, a random access memory RAM, a magnetic or optical disk, etc. In some examples, the readable storage medium may be a non-transitory computer readable storage medium.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or instructions to implement each process of the embodiments shown in fig. 1 to fig. 6, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.
Embodiments of the present application further provide a computer program/program product, where the computer program product includes a computer program stored on a non-transitory computer readable storage medium, where the computer program includes program instructions, when the program instructions are executed by a computer, cause the computer to implement the processes of the embodiments shown in fig. 1 to 6, and achieve the same technical effects, and for avoiding repetition, the description is omitted herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the description of the embodiments above, it will be apparent to those skilled in the art that the above-described example methods may be implemented by means of a computer software product plus a necessary general purpose hardware platform, but may also be implemented by hardware. The computer software product is stored on a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes instructions for causing a terminal or network side device to perform the methods according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms of embodiments may be made by those of ordinary skill in the art without departing from the spirit of the application and the scope of the claims, which fall within the protection of the present application.
Claims (11)
1. The method for adjusting the antenna weight is characterized by comprising the following steps:
Acquiring first correction information, wherein the first correction information is determined based on composite radiation information, the composite radiation information is used for mapping target radiation information corresponding to a plurality of antenna channels in a target angle range, the target radiation information is determined based on first preset radiation information respectively corresponding to the plurality of antenna channels in a first angle range and first actually measured radiation information respectively corresponding to the plurality of antenna channels in a second angle range, and the target angle range comprises the first angle range and the second angle range;
And correcting the first preset antenna weight through the first correction information to obtain a first target antenna weight, wherein the first target antenna weight is used for optimizing the antenna performance of the plurality of antenna channels corresponding to the first angle range.
2. The method of claim 1, wherein the obtaining the first correction information comprises:
Determining the first correction information according to the composite radiation information and the second actually measured radiation information, wherein the first correction information is used for describing the difference of at least one beam characteristic parameter between the second actually measured radiation information and the composite radiation information in the target angle range, the beam characteristic parameter comprises at least one of a beam pointing angle, a radiation intensity distribution, a phase distribution and a beam gain, the second actually measured radiation information is used for mapping third actually measured radiation information corresponding to the plurality of antenna channels in the target angle range respectively, and the third actually measured radiation information comprises the first actually measured radiation information.
3. The method of claim 1, wherein the obtaining the first correction information comprises:
Determining the first correction information according to the composite radiation information and the first preset antenna weight, wherein the first correction information is used for representing beam information under a first preset condition, the first preset antenna weight is an antenna weight corresponding to second preset radiation information, the second preset radiation information is used for mapping third preset radiation information respectively corresponding to the plurality of antenna channels in the target angle range, and the third preset radiation information comprises the first preset radiation information.
4. The method of claim 2, wherein the correcting the first preset antenna weight by the first correction information to obtain the first target antenna weight includes:
And adjusting the first preset antenna weight according to the first correction information to obtain the first target antenna weight.
5. The method of claim 3, wherein the correcting the first preset antenna weight by the first correction information to obtain the first target antenna weight includes:
Determining the first target antenna weight according to the first correction information and the second actually measured radiation information, wherein the first target antenna weight is the optimized first preset antenna weight, the second actually measured radiation information is used for mapping third actually measured radiation information corresponding to the plurality of antenna channels in the target angle range, and the third actually measured radiation information comprises the first actually measured radiation information.
6. The method of claim 1, wherein prior to the acquiring the first correction information, the method further comprises:
acquiring second correction information, wherein the second correction information is determined based on fourth preset radiation information, and the fourth preset radiation information is used for mapping fifth preset radiation information corresponding to the plurality of antenna channels in the target angle range respectively;
And correcting a second preset antenna weight corresponding to the fourth preset radiation information through the second correction information to obtain a second target antenna weight, wherein the second target antenna weight is used for optimizing the antenna performance of the plurality of antenna channels corresponding to the target angle range.
7. The method of claim 6, wherein the obtaining the first correction information comprises:
and acquiring the first correction information in response to the first beam forming signal not meeting a preset requirement, wherein the first beam forming signal is obtained by carrying out beam forming on signals of the plurality of antenna channels after adjusting antenna weights corresponding to the plurality of antenna channels based on the second target antenna weights.
8. The method according to claim 1, wherein the method further comprises:
And re-determining second preset radiation information in response to the second beam forming signal not meeting a preset requirement, and returning to execute the step of acquiring the first correction information until the second beam forming signal meets the preset requirement, wherein the second beam forming signal is obtained by carrying out beam forming on signals of the plurality of antenna channels after adjusting antenna weights corresponding to the plurality of antenna channels based on the first target antenna weights, and the second preset radiation information is used for mapping third preset radiation information respectively corresponding to the plurality of antenna channels in the target angle range, and the third preset radiation information comprises the first preset radiation information.
9. The method of claim 8, wherein the second beamformed signal is a main lobe signal, the antenna performance includes a signal gain, and the preset requirement includes that the signal gain of the second beamformed signal is greater than or equal to a first value and an absolute value of a difference from the first value is greater than a second value, wherein the first value is the signal gain of the main lobe signal corresponding to the plurality of antenna channels before the antenna weight adjustment, and the second value is used for measuring an adjustment amplitude of the signal gain of the second beamformed signal;
The second beam forming signal is a side lobe signal, the antenna performance comprises radiation intensity, the preset requirement comprises that the radiation intensity of the second beam forming signal is smaller than a third value, the absolute value of the difference between the radiation intensity of the second beam forming signal and the third value is larger than a fourth value, the third value is the radiation intensity of the side lobe signal corresponding to the plurality of antenna channels before the antenna weight is adjusted, and the fourth value is used for measuring the adjustment amplitude of the radiation intensity of the second beam forming signal.
10. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the method of adjusting antenna weights according to any of claims 1-9.
11. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the method for adjusting antenna weights according to any of claims 1-9.
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