CN114584992A - A method for obtaining an alternative site for a measurement and control station, and a method for planning the layout of a measurement and control station - Google Patents

Abstract

The present invention provides a method for obtaining an alternative site for a measurement and control station, comprising: S1. Obtaining a target track of a high-dynamic terminal corresponding to the layout of a measurement and control station, evenly segmenting it, and generating a preset number of candidates for each segment site; S2, adjust the antenna orientation of the measurement and control station of each candidate site to the optimal orientation, so that the measurement and control station of the candidate site can obtain the antenna orientation of the maximum communication duration for the highly dynamic terminal; S3, count each The communicable time period of each candidate site, wherein the communicable time period of the candidate site refers to the time period that meets the communication distance between the measurement and control station and the high dynamic terminal at the same time, and the high dynamic terminal antenna can cover the measurement and control station. . The time period in which the antenna of the measurement and control station can cover the highly dynamic terminal; S4 , according to all the candidate sites according to the size of the communicable time period, select a preset number of candidate sites.

Description

A method for obtaining an alternative site for a measurement and control station, and a method for planning the layout of a measurement and control station

technical field

The present invention relates to the field of wireless communication, in particular, to the field of communication between high-dynamic terminals and measurement and control stations, and more particularly, to a method for obtaining alternative sites for measurement and control stations for high-dynamic terminals, and a method for planning measurement and control stations.

Background technique

The measurement and control station is a device that provides functions such as test control, data acquisition and data recording for the high dynamic terminal test system. Larger data flow provides better data support for the high dynamic terminal test system. The more complete the test of the high dynamic terminal test system, the more helpful it is to improve the security of the actual implementation. For data acquisition and data recording, the core problem of the measurement and control station layout is the communication problem, and the factors affecting the communication include two aspects of the high dynamic terminal and the measurement and control station.

From the perspective of a high dynamic terminal, there are many factors that seriously affect its communication performance, mainly including: 1. The high dynamic terminal has a very high flying height, and its height can reach hundreds of kilometers. At this height, the terminal antenna Due to the limited power, it is difficult to maintain communication with the ground measurement and control station; 2. The high-dynamic terminal has an extremely fast flight speed, the maximum speed can reach Mach 10-20, and the average speed can reach Mach 4-6. Brings a large Doppler frequency shift to the communication; 3. The attitude of the highly dynamic terminal is also constantly changing during flight, including changes in pitch, yaw and roll. The biggest change is the change in pitch, and the change in terminal attitude directly affects When the direction of the antenna center changes, it is easy to cause the antenna to fail to point to the measurement and control station, thereby interrupting the communication link.

From the perspective of measurement and control stations, there are also many factors that affect the communication performance of the system, mainly including: 1. Affected by the geographical environment, measurement and control stations cannot be set up in any location, such as mountains, rivers, different geographical locations, high dynamic The coverage time of the terminal antenna is also different, which in turn affects the communication time. For areas with many obstructions such as dense forests, it will also affect the communication link performance; 2. The rotation speed of the measurement and control station antenna is slow, and the terminal flight speed Very fast, the antenna of the measurement and control station cannot guarantee to always follow the high dynamic terminal; 3. The antenna of the measurement and control station has limited coverage in three-dimensional space, which is manifested as limited coverage angle and limited coverage distance, and can only cover high-speed moving terminals in a short time.

Under the existing technology, in practice, the layout of measurement and control stations often sets alternative sites based on the experience of operators, and then selects the final plan through on-the-spot inspections. The influence brought by the communication link makes the measurement and control station laid out cannot guarantee a good communication quality. In the field of measurement and control station layout for high dynamic terminals, the layout problem is more focused on the tracking and measurement accuracy. Through some calculations, a geometric plan for the layout of the measurement and control station is generated to achieve the purpose of improving the measurement accuracy of the measurement and control equipment.

Some researchers also obtain the layout plan of the measurement and control station in advance by means of simulation, and then implement it. In the entire high dynamic terminal communication system, in order to complete the simulation calculation of the communication link, it is necessary to model the measurement and control station and the high dynamic terminal, and then carry out a series of simulation calculations. Regarding the part of simulation modeling, many organizations or institutions have done corresponding research work, but it relies too much on input. The simulation evaluation of the communication system based on the input data can only be used to evaluate the quality of the layout plan. In fact, there are few factors considered, most of which do not consider terrain factors and data unification of various coordinate systems, so it is difficult to use for planning and layout plans, cannot accurately predict the performance of terminal communication links, and cannot guarantee the communication between measurement and control equipment and highly dynamic terminals. efficacy.

SUMMARY OF THE INVENTION

Therefore, the purpose of the present invention is to overcome the above-mentioned defects of the prior art, and to provide a method for obtaining an alternative site of a measurement and control station and a method for planning the layout of the measurement and control station.

According to a first aspect of the present invention, there is provided a method for obtaining a candidate site for a measurement and control station, including: S1. Obtain a target track of a high-dynamic terminal corresponding to the layout of the measurement and control station, divide it into even segments, and generate a generation for each segment. A preset number of candidate sites; S2, adjust the antenna orientation of the measurement and control station of each candidate site to an optimal orientation, so that the measurement and control station of the candidate site can obtain the antenna with the maximum communication duration for the highly dynamic terminal Pointing; S3. Count the communicable time period of each candidate site, wherein the communicable time period of the candidate site refers to simultaneously satisfying the communication distance between the measurement and control station and the high dynamic terminal, and the high dynamic terminal antenna can cover The time period to the measurement and control station and the time period during which the antenna of the measurement and control station can cover the highly dynamic terminal; S4, select a preset number of candidate sites according to the size of the communicable time period according to all the candidate sites. Preferably, the method further includes: S5, when it is determined that there are sites with unreachable terrain in the candidate sites selected in S4, taking each candidate site with unreachable terrain as the center to both sides of the track Diffusion to select final topographically reachable candidate sites.

Preferably, in the step S1, each segment is a longitude distance.

Preferably, the preset number of candidate site addresses for each segment is an integer greater than or equal to 2.

In some embodiments of the present invention, the step S2 includes: S21, point the azimuth angle of the antenna of the measurement and control station to the side from which the high-dynamic terminal is flying, adjust the change step size of the pitch angle of the antenna of the measurement and control station from large to small, and Perform the following steps S22, S23 to each adjustment; S22, build a first space vector based on the measurement and control station antenna pointing and the measurement and control station position, wherein, the first space vector is the coordinates pointed to by the measurement and control station antenna to the measurement and control station alternative station The space vector of the address position coordinates; S23, build a second space vector set based on the high dynamic terminal position and the measurement and control station position, wherein, the second space vector set is directed by the position coordinates of the high dynamic terminal at each moment to the measurement and control station equipment. Select a set of second space vectors of site location coordinates; S24, calculate based on the first space vector and each second space vector in the second space vector set that the measurement and control station at the candidate site satisfies the communication condition with the highly dynamic terminal The duration, where the measurement and control station satisfies the communication condition with the high dynamic terminal when the alternative site is located means that the antenna gain attenuation corresponding to the angle between the first space vector and the second space vector is less than or equal to the preset antenna gain attenuation threshold; S24, The antenna of the measurement and control station is fixed to the direction corresponding to the time when the measurement and control station meets the communication conditions with the highly dynamic terminal and the communication time is the longest.

Preferably, in the step S2, the candidate site of the measurement and control station, the location of the high dynamic terminal at any time, and the antenna pointing of the measurement and control station are converted to a preset unified coordinate system, and then each candidate is adjusted. The antenna orientation of the monitoring and control station at the site is the optimal orientation.

Preferably, the preset antenna gain attenuation threshold is 3dB.

Preferably, the step S3 includes performing the following steps for each candidate site: S31, respectively calculating the time period in line with the communication distance between the measurement and control station and the high dynamic terminal, the time period in which the high dynamic terminal antenna can cover the measurement and control station, the measurement and control The time period in which the station antenna can cover the high dynamic terminal, among which, the time period in line with the communication distance between the measurement and control station and the high dynamic terminal means that the distance between the measurement and control station and the high dynamic terminal is smaller than the maximum coverage distance of the high dynamic terminal antenna and the measurement and control station antenna. The time period of the smaller value of the maximum coverage distance; the time period in which the high dynamic terminal antenna can cover the measurement and control station refers to the time when the angle between the first space vector and the second space vector is smaller than the half beam opening angle of the high dynamic terminal antenna The time period in which the TT&C station antenna can cover the highly dynamic terminal refers to the time period when the angle between the first space vector and the second space vector is smaller than the half-beam opening angle of the TT&C station antenna; S32. The intersection of the time period of the communication distance, the time period when the antenna of the high dynamic terminal can cover the measurement and control station, and the time period when the antenna of the measurement and control station can cover the high dynamic terminal.

In some embodiments of the present invention, the step S5 includes taking each candidate station selected in step S4 as the center, and using the block simulated annealing method to diffuse to both sides of the track to select each candidate station The final candidate site corresponding to the site, wherein, spreading to the side of the track with each candidate site as the center includes the following steps: S51, move the current candidate site to the side of the track until the terrain is reachable; S52: Calculate the communicable period corresponding to the current candidate site moving to the new location, and the communicable period corresponding to the current candidate site moving to the new location is greater than or equal to the communicable period corresponding to the current candidate site not moving When the current candidate site is moved to a new position and step S51 is executed, when the current candidate site is moved to the new position, the corresponding communicable period is smaller than the corresponding communicable period when the current candidate site does not move, directly enter step S53 S53, calculate the system temperature, the system temperature is the difference between the communicable period corresponding to the original position of the current alternative site and the corresponding communicable period when the current alternative site moves to the new position, and the system temperature is less than the setting When the minimum temperature is reached, the movement is ended, and when the system temperature is greater than or equal to the set minimum temperature, the system temperature is updated according to the preset annealing rate and step S51 is performed.

According to a second aspect of the present invention, there is provided a method for planning the layout of a measurement and control station, the method comprising: B1. Using the method as described in the first aspect of the present invention to obtain candidate sites of the measurement and control station, wherein each candidate station The location includes the azimuth angle and elevation angle of the measurement and control station antenna; B2, according to the candidate site location, the azimuth angle and the elevation angle of the measurement and control station antenna obtained in step B1, carry out the layout planning of the measurement and control station.

Compared with the prior art, the advantages of the present invention are: the present invention simulates the high dynamic terminal track and communication link from a global perspective, sets the antenna performance constraints and channel constraints of the high dynamic terminal and the measurement and control equipment, and selects the most dynamic terminal. It is suitable for the approximate location of the station, and then, on this basis, the terrain factors are set, and the optimization algorithm is used to solve the optimal layout of the station and the antenna pointing of the measurement and control equipment. It has a high degree of automation, accurate layout, and long communication time between terminals and measurement and control equipment Advantage.

Description of drawings

The embodiments of the present invention will be further described below with reference to the accompanying drawings, wherein:

1 is a schematic diagram of communication between a high dynamic terminal and a measurement and control station according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a time-dependent change in the position and attitude of a highly dynamic terminal according to an embodiment of the present invention;

3 is a schematic flowchart of a method for planning a measurement and control station layout according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of calculating a communicable time period according to an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

The purpose of the present invention is to solve the layout problem of how to select the location of the ground measurement and control station and set the direction of the antenna during the flight of the high dynamic terminal. The invention takes the communication duration as the optimization target, calculates the antenna coverage of the high dynamic terminal based on the moving track and attitude of the high dynamic terminal, and on this basis, combines the communication conditions of the measurement and control station and the constraints of the terrain to plan a reasonable layout scheme.

As mentioned in the background art, the factors affecting the communication of the measurement and control station include the factors of the high dynamic terminal and the measurement and control station, and the trajectory and attitude of the high dynamic terminal are difficult to change and adjust. Therefore, under many restrictions, only From the perspective of laying out the measurement and control station, the duration of the measurement and control station for data collection and data recording of the high dynamic terminal is improved. However, in the layout of the existing measurement and control equipment, alternative sites are often set according to the operator's experience, and then the final plan is selected on the spot. Communication performance of highly dynamic terminals. Therefore, the present invention improves the communication duration between the measurement and control station and the high dynamic terminal by pre-screening the suitable measurement and control station position and the antenna pointing angle of the measurement and control station through simulation. Further, in view of the above-mentioned problems, the present invention, from the perspective of improving the communication duration, carries out the screening of alternative sites of the measurement and control station and the layout of the measurement and control station. The various models are unified under the WGS84 coordinate system, the beam coverage between the measurement and control station and the terminal is calculated, the constraints such as antenna constraints and terrain constraints are constructed, the layout planning of the measurement and control station is completed, and the high dynamic terminal track is realized from a global perspective. Simulate with the communication link, set the antenna performance constraints and channel constraints of the highly dynamic terminal and measurement and control equipment, and select the approximate location that is most suitable for the deployment of the station. Deploy the site and the antenna pointing of the measurement and control equipment.

For better understanding of the present invention, the present invention is described in detail below with reference to the accompanying drawings.

As shown in Figure 1, it is a system of a measurement and control station and a high dynamic terminal. The beam coverage and distance of the high dynamic terminal are limited, and its pointing changes with the terminal attitude. As shown in Figure 1, at t1, t2, t3 , t4 time, the attitude of the high dynamic terminal changes, and its antenna coverage also changes accordingly. However, the actual measurement and control station layout includes multiple measurement and control stations, and each ground measurement and control station has an antenna pointing to the air to provide communication services for highly dynamic terminals.

The invention takes maximizing the communication duration as the performance index, analyzes the communication link between the high dynamic terminal and the measurement and control station, and establishes the terminal and the measurement and control station model, including: the high dynamic terminal model, the measurement and control station model, and the measurement and control station antenna model.

1) High dynamic terminal model

In order to characterize and calculate the motion model of the high dynamic terminal, the present invention establishes the terminal model shown in the following formula to express the route trajectory of the high dynamic terminal in the form of data collection to facilitate simulation analysis:

M=(T,V, _Pm ,Att,Ant)

Among them, T represents the movement duration of the terminal, V represents the speed of the terminal at each moment in the T period, P represents the position of the terminal at each moment in the T period, Att represents the attitude of the terminal at each moment in the T period, and Ant represents the antenna used by the terminal. The model covers the terminal antenna installation position, antenna orientation and antenna gain, etc. Figure 2(a) shows a typical high dynamic terminal position change trend over time, and Figure 2(b) shows a The typical high dynamic terminal attitude change trend with time, the model represents the corresponding high dynamic terminal track data set.

2) Measurement and control station model

In order to characterize and calculate the position and antenna coverage of the measurement and control station, the measurement and control station model shown in the following formula is established:

F=(P _f ,Azi,Ele,Ant)

Among them, P represents the position of the measurement and control station, such as latitude, longitude and altitude, Azi and Ele represent the center point of the antenna of the measurement and control station, that is, the azimuth and elevation angles, Ant represents the antenna model adopted by the measurement and control station, covering the antenna gain of the measurement and control station, etc. The model corresponds to the corresponding positions of all measurement and control stations, the center point of the antenna of each position measurement and control station, and the data set of the antenna model.

3) Antenna model

The antenna model uses a simple model of half-beam opening angle and distance:

Ant=(θ _f ,d _f )

Among them, θ is the half-beam opening angle of the antenna, d is the distance, and the antenna gain attenuation is limited to 3dB. Within the specified half-beam opening angle and distance range, the antenna is considered to be able to work normally, that is, when the antenna gain attenuation is far away from the antenna Under the premise that the center does not exceed 3dB, the antenna can work normally within the half-beam opening angle and distance range, and can provide services for highly dynamic terminals within the coverage. , in the case of a given antenna model, the antenna gain table can be obtained, and the antenna gain can be queried according to the opening angle, which will not be described in detail here.

After establishing the basic model of measurement and control station, high dynamic terminal and antenna, the present invention solves the layout planning problem of measurement and control station under constraints, as shown in Figure 2, and the specific solution process is as follows:

Step 1: In response to the need to deploy the measurement and control station, obtain the target track of the high-dynamic terminal corresponding to the deployment of the measurement and control station, and generate a certain number of candidate sites according to the high-dynamic terminal track. Among them, the terminal track is evenly segmented, for example, each segment is about 1 longitude distance, and each segment generates the same number of sites. For example, if the terminal flies a distance of 10 longitudes from west to east, 3 candidate sites can be generated for each longitude below the terminal track, that is, a total of 30 candidate sites can be generated. Based on the construction of the measurement and control station model, the high-dynamic terminal model, and the antenna of the measurement and control station, obtaining a high-dynamic terminal track is equivalent to obtaining a high-dynamic terminal data set corresponding to a track, and the data set is arranged according to the high-dynamic terminal model. . The generated candidate site is also equivalent to generating a TT&C station data including the site at each candidate site to form a TT&C station data set and a TT&C station antenna data set.

Step 2: Calculate the optimal orientation of the TT&C station antenna for each candidate site. The so-called optimal orientation refers to that, compared with other directions, the TT&C station uses this orientation to enable the TT&C station antenna to cover a high dynamic range. Terminal longer. According to an embodiment of the present invention, the step 2 includes performing for each candidate site:

Step 21: Convert the position data of the measurement and control station and the high dynamic terminal obtained in step 1 to a unified coordinate system, such as the WGS84 coordinate system, and use (x _f , y _f , z _f ) to represent the position of the measurement and control station respectively , (x _m , y _m , z _m ) represent the position of the highly dynamic terminal at any time.

Step 22: Establish a carrier coordinate system based on the measurement and control station, convert the antenna pointing to the WGS84 coordinate system (x _a , _{ya , z a )} according to the antenna pointing of the measurement and control station (Azi, Ele), and then based on the position of the measurement and control station (x _f , y _f , z _f ) construct the first space vector:

Step 23: According to the position of the measurement and control station and the position of the high dynamic terminal at any time (x _m , y _m , z _m ), construct the second space vector:

和

的夹角θ大小：Step 24: Calculate the duration that the measurement and control station can cover the highly dynamic terminal. Specifically, calculating

and

The size of the included angle θ:

和

的夹角θ_t要在天线模型对应 的半功率波束张角范围内)的时间段，累加可得通信时长。Obtain the antenna gain value in this direction according to the antenna model (check the antenna gain table corresponding to the antenna model) to judge its communication capability, calculate θ _t every second, and obtain the gain by looking up the table. Gain attenuation less than 3dB is in line with the communication conditions. Statistically, the high dynamic terminal meets the communication conditions with the measurement and control station during the movement process (that is, within the half-power beam range).

and

The included angle θ _t should be within the range of the half-power beam opening angle corresponding to the antenna model), and the accumulated communication duration can be obtained.

Step 25: The azimuth angle of the fixed measurement and control station antenna points to the side from which the terminal is flying, adjust the pitch angle change step size from large to small, adjust the pitch angle and repeat steps 22 to 24, and iteratively calculate that the measurement and control station can obtain the maximum value for the terminal. The optimal pointing angle of the TT&C station antenna corresponding to the communication duration.

Step 3: Count the communicable time period of each candidate site, where the communicable time period of the candidate site refers to satisfying the communication distance between the measurement and control station and the high dynamic terminal at the same time, and the high dynamic terminal antenna can cover the measurement and control station. During the time period, the antenna of the measurement and control station can cover the high dynamic terminal. According to an embodiment of the present invention, the step 3 includes performing on each candidate site:

Step 31: Calculate the distance d _t between the high dynamic terminal and the measurement and control station during the flight, the maximum coverage distance of the terminal antenna is d _m , the maximum coverage distance of the measurement and control station antenna is d _f , and the time period that conforms to the communication distance is T _d ={t| (d _t <min(d _f , d _m ))}

Step 32: The half-beam opening angle of the high-dynamic terminal antenna is θ _m , and the beam coverage of the high-dynamic terminal during flight is calculated without considering the distance, and the high-dynamic terminal beam can cover the time period T of the candidate site _m ={t|(θ _t <θ _m )}.

Step 33: The half-beam opening angle of the measurement and control station antenna is θ _f , and the beam coverage of the measurement and control station is calculated without considering the distance. The time period during which the measurement and control station antenna can cover the terminal is T _f ={t|(θ _t < θ _f )}.

Step 34: Summarize the time period between steps 31 to 33, as shown in Figure 4, and calculate the time that meets the communication distance between the measurement and control station and the high dynamic terminal, the antenna of the measurement and control station can cover the terminal, and the antenna of the terminal can cover the measurement and control station. This time period is the communicable time period:

T=T _d ∩T _m ∩T _f

Step 4: Sort the candidate sites according to the communicable time period from large to small, and select those candidate sites that are ranked first according to the preset number of candidate sites.

Step 5: Taking each candidate site as the center, considering whether the terrain is reachable or unreachable, use the block simulated annealing algorithm to diffuse to both sides of the track to select the final candidate site. The steps to one side are as follows:

Step 51: Move the candidate site to the side of the track, if the terrain is unreachable, continue to move to obtain the new position of the current candidate site;

Step 52: Use step 2 and step 3 to obtain the communicable duration T' between the measurement and control station at the new location and the high dynamic terminal, and the measurement and control station corresponding to the high dynamic terminal when the current candidate site does not move to the new location. The duration is T;

Step 53: If T'≥T, accept the move, that is, move the current candidate site to a new location, repeat step 5 until the end, if T'<T, then go to step 54;

Step 54: Calculate the system temperature Temp=TT′, if the system temperature Temp is less than the set minimum temperature value Temp _min , end the movement of the current candidate site; otherwise, update the system temperature Temp=r*Temp, and repeat step 5 until Complete the movement, where r is the preset annealing rate, 0 < r < 1, the smaller the r, the faster the system cools down.

Step 6: Summarize the data, sort by the length of the communication time, count the site location, site antenna azimuth, pitch angle and other data, and give the final site layout plan.

It can be seen from the above embodiment that:

1. The present invention establishes a communication efficiency evaluation system. The invention takes the communication duration as the performance index, and carries out unified modeling for the high-dynamic terminal, antenna, measurement and control station and antenna of the measurement and control station in the three-dimensional space, and calculates the coverage of the terminal antenna and the antenna of the measurement and control station at all times under the WGS84 coordinate system. According to the result of the link budget, the communicable time period and the accumulated communication time between the two are calculated.

2. The present invention provides a method for calculating the optimal orientation of the antenna of the measurement and control station. For the measurement and control station, there is a situation that the antenna steering cannot follow the rotation of the highly dynamic terminal, and the fixed antenna direction is often selected. On the basis of high dynamic terminal path planning, the present invention provides a method for calculating the optimal antenna pointing with the communication performance evaluation system as the standard in the case of specifying the site of the measurement and control station.

3. The present invention designs a set of methods for site selection and layout of measurement and control stations. On the basis of highly dynamic terminal path planning, the step size is set according to the flight distance, and multiple candidate sites are generated. Then set the terminal and measurement and control equipment antenna performance constraints, channel constraints, adjust the measurement and control equipment antenna pointing, evaluate each candidate site and terminal communication performance, and select several better sites. Finally, the terrain constraints are added to improve the site selection accuracy, and the candidate sites are expanded to the periphery. The block simulated annealing algorithm is used to calculate the optimal sites and the corresponding antenna directions, and an analysis report is generated.

In general, the present invention provides a fully automatic measurement and control station layout planning method oriented to high dynamic terminals. planning. In the planning process of the present invention, the track model, attitude model and beam model of the high dynamic terminal are established for the high dynamic terminal, the space channel model is established for the wireless channel, and the position model and the antenna of the terminal of the measurement and control station are established for the measurement and control station. In the model, terrain constraints are set according to terrain factors, and the block simulated annealing algorithm is used to select the site, so as to ensure the long-term communication between the measurement and control station and the terminal, which has great application value.

It should be noted that although the steps are described above in a specific order, it does not mean that the steps must be executed in the above-mentioned specific order. In fact, some of these steps can be executed concurrently, or even change the order, as long as it can be achieved The required function can be.

The present invention may be a system, method and/or computer program product. The computer program product may comprise a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of the present invention.

A computer-readable storage medium may be a tangible device that retains and stores instructions for use by an instruction execution device. Computer-readable storage media may include, but are not limited to, electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination of the foregoing, for example. More specific examples (non-exhaustive list) of computer readable storage media include: portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM) or flash memory), static random access memory (SRAM), portable compact disk read only memory (CD-ROM), digital versatile disk (DVD), memory sticks, floppy disks, mechanically encoded devices, such as printers with instructions stored thereon Hole cards or raised structures in grooves, and any suitable combination of the above.

Various embodiments of the present invention have been described above, and the foregoing descriptions are exemplary, not exhaustive, and not limiting of the disclosed embodiments. Numerous modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen to best explain the principles of the various embodiments, the practical application or technical improvement in the marketplace, or to enable others of ordinary skill in the art to understand the various embodiments disclosed herein.

Claims (12)

1. a method for obtaining an alternative site for a measurement and control station, wherein the method comprises: S1. Obtain the target track of the high-dynamic terminal corresponding to the layout of the measurement and control station, divide it into even segments, and generate a preset number of candidate sites for each segment; S2, adjust the antenna orientation of the measurement and control station of each candidate site to the optimal orientation, so that the measurement and control station of the candidate site can obtain the antenna orientation of the maximum communication duration for the highly dynamic terminal; S3. Count the communicable time period of each candidate site, wherein the communicable time period of the candidate site refers to satisfying the communication distance between the measurement and control station and the high dynamic terminal at the same time, and the high dynamic terminal antenna can cover the measurement and control. The time period of the station and the time period when the antenna of the measurement and control station can cover the high dynamic terminal; S4. Select a preset number of candidate sites according to the size of the communicable time period according to all the candidate sites. 2. The method according to claim 1, wherein the method further comprises: S5. When judging that there are sites with unreachable terrain among the candidate sites selected in S4, take each candidate site with unreachable terrain as the center and spread to both sides of the track to select the final terrain accessible site. alternative site. 3 . The method according to claim 2 , wherein, in the step S1 , each segment is one longitude distance. 4 . 4 . The method according to claim 2 , wherein the preset number of candidate site addresses for each segment is an integer greater than or equal to 2. 5 . 5. The method according to claim 2, wherein the step S2 comprises: S21, point the azimuth angle of the measurement and control station antenna to the side where the high dynamic terminal is flying, adjust the change step size of the measurement and control station antenna pitch angle from large to small, and perform the following steps S22 and S23 for each adjustment; S22, constructing a first space vector based on the direction of the measurement and control station antenna and the position of the measurement and control station, wherein the first space vector is a space vector directed by the coordinates pointed to by the antenna of the measurement and control station to the coordinates of the position coordinates of the candidate site of the measurement and control station; S23. Construct a second space vector set based on the high dynamic terminal position and the position of the measurement and control station, wherein the second space vector set is the first space vector set from the position coordinates of the high dynamic terminal at each moment to the position coordinates of the alternative site of the measurement and control station. A set of two space vectors; S24. Calculate, based on the first space vector and each of the second space vectors in the second space vector set, the length of time that the measurement and control station satisfies the communication condition with the highly dynamic terminal at the candidate site, wherein the measurement and control station satisfies the communication condition at the candidate site The communication condition with the high dynamic terminal means that the antenna gain attenuation corresponding to the angle between the first space vector and the second space vector is less than or equal to the preset antenna gain attenuation threshold; S24 , pointing and fixing the antenna of the measurement and control station to a direction corresponding to when the measurement and control station satisfies the communication conditions with the highly dynamic terminal and the communication duration is the longest. 6. method according to claim 5, is characterized in that, described in described step S2, the position where the monitoring and control station alternative site and the high dynamic terminal are located at any time, the antenna pointing of the monitoring and control station are converted to preset Under the unified coordinate system, then adjust the antenna pointing of the measurement and control station of each candidate site to the optimal pointing. 7. The method according to claim 5, wherein the preset antenna gain attenuation threshold is 3dB. 8. The method according to claim 5, wherein the step S3 comprises performing the following steps for each candidate site: S31. Calculate the time period that matches the communication distance between the measurement and control station and the high-dynamic terminal, the time period that the antenna of the high-dynamic terminal can cover the measurement and control station, and the time period that the antenna of the measurement and control station can cover the high-dynamic terminal. The time period of the communication distance of the dynamic terminal refers to the time period when the distance between the measurement and control station and the high dynamic terminal is less than the smaller of the maximum coverage distance of the high dynamic terminal antenna and the maximum coverage distance of the measurement and control station antenna; the high dynamic terminal antenna can cover up to The time period of the measurement and control station refers to the time period in which the angle between the first space vector and the second space vector is smaller than the half-beam opening angle of the antenna of the high dynamic terminal; the time period in which the antenna of the measurement and control station can cover the high dynamic terminal refers to the first space The time period in which the included angle between the vector and the second space vector is smaller than the half-beam opening angle of the antenna of the measurement and control station; S32: Calculate the intersection of the time period that matches the communication distance between the measurement and control station and the high-dynamic terminal, the time period that the antenna of the high-dynamic terminal can cover the measurement and control station, and the time period that the antenna of the measurement and control station can cover to the high-dynamic terminal. 9. The method according to claim 2, wherein the step S5 comprises taking each candidate site selected in the step S4 as the center, using the block simulated annealing method to diffuse to both sides of the track respectively to select the site. The final candidate site corresponding to each candidate site is obtained, wherein the diffusion to the track side with each candidate site as the center includes the following steps: S51. Move the current candidate site to the side of the track until the terrain is reachable; S52: Calculate the communicable period corresponding to the current candidate site moving to the new location, and the communicable period corresponding to the current candidate site moving to the new location is greater than or equal to the communicable period corresponding to the current candidate site not moving When the current candidate site is moved to a new position and step S51 is executed, when the current candidate site is moved to the new position, the corresponding communicable period is smaller than the corresponding communicable period when the current candidate site does not move, directly enter step S53 ; S53. Calculate the system temperature, where the system temperature is the difference between the communicable period corresponding to the original position of the current candidate site and the communicable period corresponding to when the current candidate site moves to a new location, and the system temperature is less than the set The movement is ended when the minimum temperature is reached, and when the system temperature is greater than or equal to the set minimum temperature, the system temperature is updated according to the preset annealing rate and step S51 is performed. 10. A measurement and control station layout planning method, characterized in that the method comprises: B1. Use the method according to any one of claims 1 to 9 to obtain an alternative site of the measurement and control station, wherein each alternative site includes information of the azimuth angle and elevation angle of the antenna of the measurement and control station; B2. According to the candidate site location, the antenna azimuth angle and the elevation angle of the measurement and control station obtained in step B1, the layout planning of the measurement and control station is carried out. 11. A computer-readable storage medium, characterized in that a computer program is stored thereon, and the computer program can be executed by a processor to implement the steps of any one of the methods of claims 1-9 or 10. 12. An electronic device, characterized in that, comprising: one or more processors; A storage device for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the electronic device as claimed in any one of claims 1-9 or 10 steps of the method described.

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