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Method for acquiring extensible sparse array antenna layout

An extended array and acquisition method technology, applied in the field of acquisition of scalable sparse array antenna layout, can solve the problem that sparse array antennas cannot meet the low sidelobe and low cost of sparse array antennas at the same time, and achieve strong global search capabilities, good low-cost Effect of sidelobe characteristics, strong convergence stability

Active Publication Date: 2021-02-12
重庆两江卫星移动通信有限公司
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is: the existing sparse array antenna design method cannot simultaneously satisfy the low sidelobe and low cost of the sparse array antenna, and also support the characteristics of extended design and engineering iteration

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  • Method for acquiring extensible sparse array antenna layout
  • Method for acquiring extensible sparse array antenna layout
  • Method for acquiring extensible sparse array antenna layout

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Embodiment Construction

[0063] 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 in conjunction with the examples and accompanying drawings. As a limitation of the present invention.

[0064] like figure 1 As shown, a method for obtaining a scalable sparse array antenna layout includes the following steps:

[0065] Step 1: Generate random sparse subarrays and extension vectors of the rotation matrix according to the initialization parameters, the extension vectors form an extension array, the specific method is as follows:

[0066] Step 11: Randomly delete a certain number of vectors in the full matrix to generate a sparse sub-array;

[0067] Step 12: Randomly set the rotation angle of each sparse sub-array to generate a rotation matrix;

[0068] Step 13: Concatenate the sparse subarray and the rotation matrix into a column vector, the high bit represents the sparse subarray, and the lo...

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Abstract

The invention discloses an extensible sparse array antenna layout obtaining method, and solves the problems that when a large sparse array antenna is applied to practical engineering, the array surface scale is large; the problems of complex feed network, difficult radio frequency connection design, complex beam control programming, high array directional diagram sidelobe caused by periodic sparsesubarray splicing, low antenna gain and the like caused by irregular sparse units are solved. The method comprises the steps of initializing parameters of a sparse sub-array and a rotation matrix, combining the sparse sub-array and the rotation matrix into an extended array, generating an extended array population, synthesizing extended sparse array directional diagrams through inverse fast Fourier transform, calculating the fitness of the array directional diagrams; and optimizing the extended sparse array by means of a genetic algorithm, and outputting a sparse sub-array, a rotation matrixand the extended sparse array when the target function meets the requirement or reaches the maximum number of iterations.

Description

technical field [0001] The present invention relates to the technical field of array antennas, in particular to a method for acquiring a scalable sparse array antenna layout. Background technique [0002] In the field of long-distance detection and identification, it is required that the antenna has high gain, narrow beam, large scanning space and long working distance, which requires the phased array antenna to have a large aperture and a large number of units. This creates several problems: [0003] 1. With the increase of the aperture of the array antenna, the number of elements increases sharply, and the system complexity and production cost also increase accordingly. [0004] 2. The heat dissipation of the closely arranged active antenna elements containing T / R components is a big problem. [0005] Therefore, in applications that primarily require a narrow beam rather than maximum gain, elements can be removed from a large, evenly distributed array, or connected to ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0408H04B7/06H04B7/08
CPCH04B7/0408H04B7/0634H04B7/086
Inventor 胡候平刘大桥王建伟
Owner 重庆两江卫星移动通信有限公司
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