[go: up one dir, main page]

CN116148778A - A method and system for sidelobe concealment of unit digital cylindrical phased array radar - Google Patents

A method and system for sidelobe concealment of unit digital cylindrical phased array radar Download PDF

Info

Publication number
CN116148778A
CN116148778A CN202310201128.3A CN202310201128A CN116148778A CN 116148778 A CN116148778 A CN 116148778A CN 202310201128 A CN202310201128 A CN 202310201128A CN 116148778 A CN116148778 A CN 116148778A
Authority
CN
China
Prior art keywords
phased array
cylindrical phased
sidelobe
array
sub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202310201128.3A
Other languages
Chinese (zh)
Other versions
CN116148778B (en
Inventor
黄占伟
刘海波
于冲
蔡家驹
郑朝
宋杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bit Raco Electronic Information Technology Co ltd
Advanced Technology Research Institute of Beijing Institute of Technology
Original Assignee
Bit Raco Electronic Information Technology Co ltd
Advanced Technology Research Institute of Beijing Institute of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bit Raco Electronic Information Technology Co ltd, Advanced Technology Research Institute of Beijing Institute of Technology filed Critical Bit Raco Electronic Information Technology Co ltd
Publication of CN116148778A publication Critical patent/CN116148778A/en
Application granted granted Critical
Publication of CN116148778B publication Critical patent/CN116148778B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/42—Diversity systems specially adapted for radar
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

本发明涉及一种单元数字化圆柱形相控阵雷达副瓣匿影方法及系统，属于圆柱形相控阵雷达领域，所述方法包括：获取圆柱形相控阵；将所述圆柱形相控阵划分为K个子阵；将所述K个子阵进行数字波束形成，形成每个子阵的和、方位差、俯仰差三个波束；经数字波束形成后，将K个子阵物理位置最中心的阵元作为匿影通道，将匿影通道乘以不同的权系数K1和K2，分别形成方位匿影波束和俯仰匿影波束；将每个子阵的和波束与K‑1个子阵的方位匿影通道、俯仰匿影通道进行联合检测，抑制不同方位、不同俯仰上的副瓣匿影，形成最终检测点。本发明中的上述方案有效的抑制副瓣进入干扰、降低虚警。

Figure 202310201128

The invention relates to a method and system for concealing the sidelobe of a unit digitized cylindrical phased array radar, which belongs to the field of cylindrical phased array radars. The method includes: obtaining a cylindrical phased array; dividing the cylindrical phased array into K sublobes array; perform digital beamforming on the K subarrays to form three beams of the sum, azimuth difference, and elevation difference of each subarray; after digital beamforming, use the array element at the center of the physical position of the K subarrays as a hidden channel , multiply the hidden channels by different weight coefficients K 1 and K 2 to form azimuth hidden beams and pitch hidden beams respectively; The joint detection of shadow channels is used to suppress the sidelobe disappearance in different azimuths and different elevations to form the final detection point. The above solution in the present invention can effectively suppress the interference of side lobes and reduce false alarms.

Figure 202310201128

Description

一种单元数字化圆柱形相控阵雷达副瓣匿影方法及系统A method and system for sidelobe concealment of unit digital cylindrical phased array radar

技术领域technical field

本发明涉及圆柱形相控阵雷达领域，特别是涉及一种单元数字化圆柱形相控阵雷达副瓣匿影方法及系统。The invention relates to the field of cylindrical phased array radar, in particular to a method and system for hiding sidelobe of a unit digitized cylindrical phased array radar.

背景技术Background technique

一般圆柱形相控阵天线阵列共有M*N个阵元，所有阵元均匀分布在圆柱形阵面上。其中，圆柱阵面上共N个圆环均匀分布在圆柱面上，每个圆环共M个阵元(也可理解为共M条竖直放置的线阵均匀分布在圆柱面上，每条线阵由N个阵元组成)，单元数字化即对每个阵元通道进行AD处理，如圆柱相控阵包含M*N个阵元，则包含M*N路ADC。Generally, the cylindrical phased array antenna array has M*N array elements in total, and all the array elements are evenly distributed on the cylindrical array surface. Among them, a total of N rings on the cylindrical array are evenly distributed on the cylindrical surface, and each ring has M array elements (also can be understood as a total of M vertically placed line arrays are evenly distributed on the cylindrical surface, each The linear array is composed of N array elements), and the unit digitization is to perform AD processing on each array element channel. If the cylindrical phased array contains M*N array elements, it includes M*N channels of ADC.

雷达主天线一般为强方向性天线，天线方向图主瓣增益较大，副瓣增益较低，且主瓣一般非常窄，而副瓣覆盖大部分空间。所以，对于干扰信号来说，从副瓣进入雷达天线的概率非常大，为了抑制干扰，通常副瓣增益都非常低，但当雷达处于极强的有源干扰环境时，干扰信号可能淹没目标信号。而圆柱型相控阵无论发射还是接收在副瓣上很容易产生较高的副瓣，为有效的抑制副瓣进入的干扰，需要设计专用的匿影通道，对副瓣干扰进行抑制。The main radar antenna is generally a strong directional antenna. The gain of the main lobe of the antenna pattern is relatively large, and the gain of the side lobes is low. The main lobe is generally very narrow, while the side lobes cover most of the space. Therefore, for the interference signal, the probability of entering the radar antenna from the side lobe is very high. In order to suppress interference, the side lobe gain is usually very low, but when the radar is in a very strong active interference environment, the interference signal may overwhelm the target signal . However, the cylindrical phased array is easy to produce high side lobes on the side lobes no matter whether it is transmitting or receiving. In order to effectively suppress the interference from the side lobes, it is necessary to design a dedicated shadow channel to suppress the side lobes.

发明内容Contents of the invention

本发明的目的是提供一种单元数字化圆柱形相控阵雷达副瓣匿影方法及系统，有效的抑制副瓣进入干扰、降低虚警。The purpose of the present invention is to provide a method and system for concealing sidelobe shadows of a unit digitized cylindrical phased array radar, which can effectively suppress sidelobe interference and reduce false alarms.

为实现上述目的，本发明提供了如下方案：To achieve the above object, the present invention provides the following scheme:

第一方面，本发明提供了一种单元数字化圆柱形相控阵雷达副瓣匿影方法，所述方法包括：In the first aspect, the present invention provides a method for concealing the sidelobe of a unit digitized cylindrical phased array radar, the method comprising:

获取圆柱形相控阵；Obtain a cylindrical phased array;

将所述圆柱形相控阵划分为K个子阵；Dividing the cylindrical phased array into K sub-arrays;

将所述K个子阵进行数字波束形成，形成每个子阵的和、方位差、俯仰差三个波束；performing digital beamforming on the K subarrays to form three beams of sum, azimuth difference and elevation difference of each subarray;

经数字波束形成后，将K个子阵物理位置最中心的阵元作为匿影通道，将匿影通道乘以不同的权系数K1和K2，分别形成方位匿影波束和俯仰匿影波束；After digital beamforming, the array element at the center of the physical position of the K sub-arrays is used as a hidden channel, and the hidden channel is multiplied by different weight coefficients K 1 and K 2 to form an azimuth hidden beam and an elevation hidden beam respectively;

将每个子阵的和波束与K-1个子阵的方位匿影通道、俯仰匿影通道进行联合检测，抑制不同方位、不同俯仰上的副瓣匿影，形成最终检测点。The sum beam of each sub-array is jointly detected with the azimuth hidden channels and pitch hidden channels of K-1 sub-arrays to suppress sidelobe shadowing in different azimuths and different pitches to form the final detection point.

可选的，所述圆柱形相控阵包含M*N个阵元。Optionally, the cylindrical phased array includes M*N array elements.

可选的，所述每个子阵包括M*N/K个阵元。Optionally, each sub-array includes M*N/K array elements.

第二方面，本发明提供了一种单元数字化圆柱形相控阵雷达副瓣匿影系统，所述系统包括：In a second aspect, the present invention provides a unit digitized cylindrical phased array radar sidelobe concealment system, the system comprising:

圆柱形相控阵获取模块，用于获取圆柱形相控阵；A cylindrical phased array acquisition module, configured to acquire a cylindrical phased array;

划分模块，用于将所述圆柱形相控阵划分为K个子阵；A division module, configured to divide the cylindrical phased array into K sub-arrays;

数字波束形成模块，用于将所述K个子阵进行数字波束形成，形成每个子阵的和、方位差、俯仰差三个波束；A digital beamforming module, configured to perform digital beamforming on the K subarrays to form three beams of the sum, azimuth difference, and elevation difference of each subarray;

方位匿影波束和俯仰匿影波束确定模块，用于经数字波束形成后，将K个子阵物理位置最中心的阵元作为匿影通道，将匿影通道乘以不同的权系数K1和K2，分别形成方位匿影波束和俯仰匿影波束；The azimuth shadow beam and elevation shadow beam determination module are used to use the array element at the center of the physical position of the K sub-arrays as the shadow channel after digital beamforming, and multiply the shadow channel by different weight coefficients K 1 and K 2 , respectively form the azimuth shadow beam and the elevation shadow beam;

检测点确定模块，用于将每个子阵的和波束与K-1个子阵的方位匿影通道、俯仰匿影通道进行联合检测，抑制不同方位、不同俯仰上的副瓣匿影，形成最终检测点。The detection point determination module is used to jointly detect the sum beam of each sub-array and the azimuth shadow channel and pitch shadow channel of K-1 sub-arrays, suppress the sidelobe shadows in different azimuths and different pitches, and form the final detection point.

可选的，所述圆柱形相控阵包含M*N个阵元。Optionally, the cylindrical phased array includes M*N array elements.

可选的，所述每个子阵包括M*N/K个阵元。Optionally, each sub-array includes M*N/K array elements.

第三方面，本发明提供了一种电子设备，包括存储器及处理器，所述存储器用于存储计算机程序，所述处理器运行所述计算机程序以使所述电子设备执行上述的单元数字化圆柱形相控阵雷达副瓣匿影方法。In a third aspect, the present invention provides an electronic device, including a memory and a processor, the memory is used to store a computer program, and the processor runs the computer program so that the electronic device executes the above-mentioned unit digital cylindrical phase A sidelobe concealment method for control array radar.

第四方面，本发明提供了一种计算机可读存储介质，其特征在于，其存储有计算机程序，所述计算机程序被处理器执行时实现上述的单元数字化圆柱形相控阵雷达副瓣匿影方法。In a fourth aspect, the present invention provides a computer-readable storage medium, which is characterized in that it stores a computer program, and when the computer program is executed by a processor, the above-mentioned method for concealing the sidelobe of a unit digitized cylindrical phased array radar is realized .

根据本发明提供的具体实施例，本发明公开了以下技术效果：According to the specific embodiments provided by the invention, the invention discloses the following technical effects:

圆柱型相控阵属于共性阵，通过滑窗扫描的方式可实现方位360°覆盖，呈圆弧排列的阵元易在左右120°方位上形成较高的副瓣，特别是当阵元间距较大时(大于半波长)，本发明通过当前子阵与K-1个匿影通道联合检测，可有效的抑制副瓣进入干扰、降低虚警。Cylindrical phased arrays are common arrays, which can achieve 360° azimuth coverage through sliding window scanning. The array elements arranged in a circular arc tend to form higher side lobes in the left and right 120° azimuths, especially when the array elements are spaced farther apart. When it is large (greater than half the wavelength), the present invention can effectively suppress sidelobe interference and reduce false alarms through joint detection of the current subarray and K-1 invisible channels.

附图说明Description of drawings

为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without paying creative labor.

图1为本发明实施例1一种单元数字化圆柱形相控阵雷达副瓣匿影方法流程图；Fig. 1 is a flow chart of a method for concealing sidelobes of a unit digitized cylindrical phased array radar according to Embodiment 1 of the present invention;

图2为本发明实施例2一种单元数字化圆柱形相控阵雷达副瓣匿影系统结构示意图。Fig. 2 is a schematic structural diagram of a unit digital cylindrical phased array radar sidelobe concealment system according to Embodiment 2 of the present invention.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

本发明的目的是提供一种单元数字化圆柱形相控阵雷达副瓣匿影方法及系统，有效的抑制副瓣进入干扰、降低虚警。The purpose of the present invention is to provide a method and system for concealing sidelobe shadows of a unit digitized cylindrical phased array radar, which can effectively suppress sidelobe interference and reduce false alarms.

为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

实施例1Example 1

图1为本发明实施例一种单元数字化圆柱形相控阵雷达副瓣匿影方法，如图1所示，本发明中的方法包括：Fig. 1 is a kind of unit digital cylindrical phased array radar sidelobe concealment method of the embodiment of the present invention, as shown in Fig. 1, the method among the present invention comprises:

步骤101：获取圆柱形相控阵。Step 101: Obtain a cylindrical phased array.

其中，圆柱形相控阵包含M*N个阵元，即形成K个子收发波束。Wherein, the cylindrical phased array includes M*N array elements, that is, K sub-transmitting beams are formed.

步骤102：将所述圆柱形相控阵划分为K个子阵。Step 102: Divide the cylindrical phased array into K sub-arrays.

其中，每个子阵包括M*N/K个阵元。Wherein, each sub-array includes M*N/K array elements.

步骤103：将所述K个子阵进行数字波束形成，形成每个子阵的和、方位差、俯仰差三个波束。Step 103: Perform digital beamforming on the K subarrays to form three beams of the sum, azimuth difference, and elevation difference of each subarray.

数字波束形成(Digital Beam Forming，DBF)技术，是针对阵列天线,利用阵列天线的孔径，通过数字信号处理在期望的方向形成接收波束。DBF的物理意义是：虽然单个天线的方向图是全向的，但对阵列多个接收通道的信号，利用数字处理方法，对某一方向的入射信号，补偿由于传感器在空间位置不同而引起的传播波程差导致的相位差，实现同相叠加，从而实现该方向的最大能量接收，完成该方向上的波束形成，来接收有用的期望信号，这种把阵列接收的方向增益聚集在一个指定的方向上，相当于形成了一个“波束”。可以通过改变权值,使得波束指向不同的方向，并实现波束的扫描。通过多通道的并行处理也可以同时形成多个波束，还可以选择合适的窗函数来降低副瓣电平。Digital beam forming (Digital Beam Forming, DBF) technology is aimed at the array antenna, using the aperture of the array antenna to form a receiving beam in a desired direction through digital signal processing. The physical meaning of DBF is: although the pattern of a single antenna is omnidirectional, for the signals of multiple receiving channels of the array, the digital processing method is used to compensate the incident signals in a certain direction due to the different spatial positions of the sensors. The phase difference caused by the propagation wave path difference is realized in-phase superposition, thereby realizing the maximum energy reception in this direction, and completing the beamforming in this direction to receive useful desired signals, which gathers the directional gain received by the array in a specified In the direction, it is equivalent to forming a "beam". By changing the weights, the beams can be pointed in different directions, and the scanning of the beams can be realized. Multiple beams can also be formed simultaneously through multi-channel parallel processing, and an appropriate window function can be selected to reduce the side lobe level.

步骤104：经数字波束形成后，将K个子阵物理位置最中心的阵元作为匿影通道，将匿影通道乘以不同的权系数K1和K2，分别形成方位匿影波束和俯仰匿影波束。Step 104: After digital beamforming, use the array element at the center of the physical position of the K subarrays as a hidden channel, and multiply the hidden channel by different weight coefficients K 1 and K 2 to form an azimuth hidden beam and an elevation hidden beam respectively. shadow beam.

步骤105：将每个子阵的和波束与K-1个子阵的方位匿影通道、俯仰匿影通道进行联合检测，抑制不同方位、不同俯仰上的副瓣匿影，形成最终检测点。Step 105: Jointly detect the sum beam of each subarray and the azimuth shadowing channels and pitch shadowing channels of K-1 subarrays, suppress sidelobe shadowing in different azimuths and different elevations, and form a final detection point.

实施例2Example 2

图2为本发明实施例一种单元数字化圆柱形相控阵雷达副瓣匿影系统结构示意图，如图2所示，本发明中的系统包括：Fig. 2 is a schematic structural diagram of a unit digitized cylindrical phased array radar sidelobe concealment system according to an embodiment of the present invention. As shown in Fig. 2, the system in the present invention includes:

圆柱形相控阵获取模块201，用于获取圆柱形相控阵.A cylindrical phased array acquisition module 201, configured to acquire a cylindrical phased array.

划分模块202，用于将所述圆柱形相控阵划分为K个子阵。A division module 202, configured to divide the cylindrical phased array into K sub-arrays.

数字波束形成模块203，用于将所述K个子阵进行数字波束形成，形成每个子阵的和、方位差、俯仰差三个波束。The digital beamforming module 203 is configured to perform digital beamforming on the K subarrays to form three beams of sum, azimuth difference and elevation difference of each subarray.

方位匿影波束和俯仰匿影波束确定模块204，用于经数字波束形成后，将K个子阵物理位置最中心的阵元作为匿影通道，将匿影通道乘以不同的权系数K1和K2，分别形成方位匿影波束和俯仰匿影波束。The azimuth shadow beam and elevation shadow beam determination module 204 is used to use the array element at the center of the physical position of the K sub-arrays as a shadow channel after digital beamforming, and multiply the shadow channel by different weight coefficients K 1 and K 2 , respectively forming an azimuth shadow beam and an elevation shadow beam.

检测点确定模块205，用于将每个子阵的和波束与K-1个子阵的方位匿影通道、俯仰匿影通道进行联合检测，抑制不同方位、不同俯仰上的副瓣匿影，形成最终检测点。The detection point determination module 205 is used to jointly detect the sum beam of each subarray and the azimuth concealed channel and the pitch concealed channel of K-1 subarrays, suppress the sidelobe concealment on different azimuths and different elevations, and form the final check Point.

实施例3Example 3

本发明提供了一种电子设备，包括存储器及处理器，所述存储器用于存储计算机程序，所述处理器运行所述计算机程序以使所述电子设备执行上述的单元数字化圆柱形相控阵雷达副瓣匿影方法。The present invention provides an electronic device, including a memory and a processor, the memory is used to store a computer program, and the processor runs the computer program so that the electronic device executes the above-mentioned unit digital cylindrical phased array radar pair Flap concealment method.

实施例4Example 4

本发明提供了一种计算机可读存储介质，其特征在于，其存储有计算机程序，所述计算机程序被处理器执行时实现上述的单元数字化圆柱形相控阵雷达副瓣匿影方法。The present invention provides a computer-readable storage medium, which is characterized in that it stores a computer program, and when the computer program is executed by a processor, the above-mentioned method for hiding the sidelobe of a unit digitized cylindrical phased array radar is realized.

本发明中的上述方案具有以下有益效果：Said scheme among the present invention has following beneficial effect:

圆柱型相控阵属于共性阵，通过滑窗扫描的方式可实现方位360°覆盖，呈圆弧排列的阵元易在左右120°方位上形成较高的副瓣，特别是当阵元间距较大时(大于半波长)，本发明通过当前子阵与K-1个匿影通道联合检测，可有效的抑制副瓣进入干扰、降低虚警。Cylindrical phased arrays are common arrays, which can achieve 360° azimuth coverage through sliding window scanning. The array elements arranged in a circular arc tend to form higher side lobes in the left and right 120° azimuths, especially when the array elements are spaced farther apart. When it is large (greater than half the wavelength), the present invention can effectively suppress sidelobe interference and reduce false alarms through joint detection of the current subarray and K-1 invisible channels.

本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。对于实施例公开的系统而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related information, please refer to the description of the method part.

本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处。综上所述，本说明书内容不应理解为对本发明的限制。In this paper, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to the present invention Thoughts, there will be changes in specific implementation methods and application ranges. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (8)

1.一种单元数字化圆柱形相控阵雷达副瓣匿影方法，其特征在于，所述方法包括：1. a kind of unit digitization cylindrical phased array radar side lobe concealment method, it is characterized in that, described method comprises: 获取圆柱形相控阵；Obtain a cylindrical phased array; 将所述圆柱形相控阵划分为K个子阵；Dividing the cylindrical phased array into K sub-arrays; 将所述K个子阵进行数字波束形成，形成每个子阵的和、方位差、俯仰差三个波束；performing digital beamforming on the K subarrays to form three beams of sum, azimuth difference and elevation difference of each subarray; 经数字波束形成后，将K个子阵物理位置最中心的阵元作为匿影通道，将匿影通道乘以不同的权系数K1和K2，分别形成方位匿影波束和俯仰匿影波束；After digital beamforming, the array element at the center of the physical position of the K sub-arrays is used as a hidden channel, and the hidden channel is multiplied by different weight coefficients K 1 and K 2 to form an azimuth hidden beam and an elevation hidden beam respectively; 将每个子阵的和波束与K-1个子阵的方位匿影通道、俯仰匿影通道进行联合检测，抑制不同方位、不同俯仰上的副瓣匿影，形成最终检测点。The sum beam of each sub-array is jointly detected with the azimuth hidden channels and pitch hidden channels of K-1 sub-arrays to suppress sidelobe shadowing in different azimuths and different pitches to form the final detection point. 2.根据权利要求1所述的单元数字化圆柱形相控阵雷达副瓣匿影方法，其特征在于，所述圆柱形相控阵包含M*N个阵元。2. the unit digitization cylindrical phased array radar sidelobe hiding method according to claim 1, is characterized in that, described cylindrical phased array comprises M*N array element. 3.根据权利要求1所述的单元数字化圆柱形相控阵雷达副瓣匿影方法，其特征在于，所述每个子阵包括M*N/K个阵元。3. The unit digitized cylindrical phased array radar sidelobe concealment method according to claim 1, wherein each sub-array includes M*N/K array elements. 4.一种单元数字化圆柱形相控阵雷达副瓣匿影系统，其特征在于，所述系统包括：4. A unit digital cylindrical phased array radar sidelobe concealment system is characterized in that the system comprises: 圆柱形相控阵获取模块，用于获取圆柱形相控阵；A cylindrical phased array acquisition module, configured to acquire a cylindrical phased array; 划分模块，用于将所述圆柱形相控阵划分为K个子阵；A division module, configured to divide the cylindrical phased array into K sub-arrays; 数字波束形成模块，用于将所述K个子阵进行数字波束形成，形成每个子阵的和、方位差、俯仰差三个波束；A digital beamforming module, configured to perform digital beamforming on the K subarrays to form three beams of the sum, azimuth difference, and elevation difference of each subarray; 方位匿影波束和俯仰匿影波束确定模块，用于经数字波束形成后，将K个子阵物理位置最中心的阵元作为匿影通道，将匿影通道乘以不同的权系数K1和K2，分别形成方位匿影波束和俯仰匿影波束；The azimuth shadow beam and elevation shadow beam determination module are used to use the array element at the center of the physical position of the K sub-arrays as the shadow channel after digital beamforming, and multiply the shadow channel by different weight coefficients K 1 and K 2 , respectively form the azimuth shadow beam and the elevation shadow beam; 检测点确定模块，用于将每个子阵的和波束与K-1个子阵的方位匿影通道、俯仰匿影通道进行联合检测，抑制不同方位、不同俯仰上的副瓣匿影，形成最终检测点。The detection point determination module is used to jointly detect the sum beam of each sub-array and the azimuth shadow channel and pitch shadow channel of K-1 sub-arrays, suppress the sidelobe shadows in different azimuths and different pitches, and form the final detection point. 5.根据权利要求1所述的单元数字化圆柱形相控阵雷达副瓣匿影系统，其特征在于，所述圆柱形相控阵包含M*N个阵元。5. The unit digitized cylindrical phased array radar sidelobe concealment system according to claim 1, wherein the cylindrical phased array comprises M*N array elements. 6.根据权利要求1所述的单元数字化圆柱形相控阵雷达副瓣匿影系统，其特征在于，所述每个子阵包括M*N/K个阵元。6. The unit digitized cylindrical phased array radar sidelobe concealment system according to claim 1, wherein each sub-array includes M*N/K array elements. 7.一种电子设备，其特征在于，包括存储器及处理器，所述存储器用于存储计算机程序，所述处理器运行所述计算机程序以使所述电子设备执行如权利要求1-3中任一项所述的单元数字化圆柱形相控阵雷达副瓣匿影方法。7. An electronic device, characterized in that it comprises a memory and a processor, the memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to execute any of the following claims 1-3. The invention relates to a sidelobe concealment method of unit digitized cylindrical phased array radar. 8.一种计算机可读存储介质，其特征在于，其存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1-3中任一项所述的单元数字化圆柱形相控阵雷达副瓣匿影方法。8. A computer-readable storage medium, characterized in that it stores a computer program, and when the computer program is executed by a processor, it realizes the unit digitized cylindrical phased array radar according to any one of claims 1-3 Sidelobe concealment method.
CN202310201128.3A 2022-11-17 2023-03-06 Unit digital cylindrical phased array radar side lobe shadow hiding method and system Active CN116148778B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2022114590865 2022-11-17
CN202211459086 2022-11-17

Publications (2)

Publication Number Publication Date
CN116148778A true CN116148778A (en) 2023-05-23
CN116148778B CN116148778B (en) 2025-09-19

Family

ID=86358161

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310201128.3A Active CN116148778B (en) 2022-11-17 2023-03-06 Unit digital cylindrical phased array radar side lobe shadow hiding method and system

Country Status (1)

Country Link
CN (1) CN116148778B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110285582A1 (en) * 2009-11-16 2011-11-24 Guifu Zhang Cylindrical polarimetric phased array radar
CN106291474A (en) * 2016-08-22 2017-01-04 西安电子科技大学 Centralized MIMO radar waveform optimization method based on cylindrical array
KR102188034B1 (en) * 2020-05-06 2020-12-07 국방과학연구소 Sidelobe blanking system for phased array radar
CN113341381A (en) * 2021-03-12 2021-09-03 中国人民解放军空军预警学院 Full-automatic anti-radar side lobe interference system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110285582A1 (en) * 2009-11-16 2011-11-24 Guifu Zhang Cylindrical polarimetric phased array radar
CN106291474A (en) * 2016-08-22 2017-01-04 西安电子科技大学 Centralized MIMO radar waveform optimization method based on cylindrical array
KR102188034B1 (en) * 2020-05-06 2020-12-07 국방과학연구소 Sidelobe blanking system for phased array radar
CN113341381A (en) * 2021-03-12 2021-09-03 中国人民解放军空军预警学院 Full-automatic anti-radar side lobe interference system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
J.E. CHIN ET AL.: "Reducing the interference between sidelobe cancellers and sidelobe blankers in electronic scanning array radars", 《PROCEEDINGS OF THE IEEE NATIONAL RADAR CONFERENCE》, 30 March 1989 (1989-03-30) *
寇鹏飞 等: "一种适用于高集成度相控阵雷达的时序匿影方法", 《现代雷达》, vol. 43, no. 9, 30 September 2021 (2021-09-30) *
赵英健 等: "改进的可变门限旁瓣消隐技术", 《电光与控制》, vol. 29, no. 10, 31 October 2022 (2022-10-31) *

Also Published As

Publication number Publication date
CN116148778B (en) 2025-09-19

Similar Documents

Publication Publication Date Title
US7317427B2 (en) Adaptive array
US10506337B2 (en) Frequency-invariant beamformer for compact multi-ringed circular differential microphone arrays
US9279884B2 (en) Method and device for estimating direction of arrival
CA2204298C (en) Circularly symmetric, zero redundancy, planar array having broad frequency range applications
CN108508423A (en) Submatrix number based on special-shaped battle array and poor Monopulse estimation method
Di Martino et al. Passive beamforming with coprime arrays
JP2005033805A (en) Superdirective circular receiving antenna array
US7898477B1 (en) Volumetric direction-finding using a Maxwell Fish-Eye lens
Reza et al. Robust uniform concentric circular array beamforming in the existence of look direction disparity
Droszcz et al. Beamforming of LOFAR radio telescope antennas used as sensors in passive radiolocation system
Iupikov et al. Dense focal plane arrays for pushbroom satellite radiometers
CN115712112A (en) Arc frequency control array-based antenna beam two-dimensional scanning method and device and storage medium
CN111398907B (en) Phased array radar space domain two-dimensional digital difference beam forming method
Zhou et al. Research on interferometer direction finding technology based on digital beam forming
CN116148778A (en) A method and system for sidelobe concealment of unit digital cylindrical phased array radar
US11658725B2 (en) System and method for radar disambiguation techniques
JP2007243352A (en) Array antenna device
CN112485763B (en) Novel side lobe shading device and method
Yu Advanced monopulse processing of phased array radar
Pelletier et al. Angle-of-arrival estimation for a rotating digital beamforming radar
CN114660595A (en) Frequency diversity circular array radar imaging method for transmitting vortex electromagnetic waves
CN114487985A (en) Beam sharpening method and system based on difference-sum signal
Rahaman et al. Performane analysis of linearly-arranged concentric circular antenna array using robust ODL technique
Rahaman et al. Linearly-arranged Concentric Circular Antenna Array Using Robust VDL technique
Hu Aspects of the subarrayed array processing for the phased array radar

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant