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A Method for Reducing the Complexity of Element Activation Algorithm in Phased Array System

A phased array, complex technology, applied in complex mathematical operations, radio wave measurement systems, instruments, etc., can solve problems such as large amount of calculation, reduce the number of calculations, reduce the number of sub-arrays, and improve beam performance.

Active Publication Date: 2022-07-29
10TH RES INST OF CETC
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  • Application Information

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Problems solved by technology

Using the traditional activation judgment method, there is a problem of large amount of calculation

Method used

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  • A Method for Reducing the Complexity of Element Activation Algorithm in Phased Array System
  • A Method for Reducing the Complexity of Element Activation Algorithm in Phased Array System
  • A Method for Reducing the Complexity of Element Activation Algorithm in Phased Array System

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Embodiment Construction

[0013] see figure 1 . According to the present invention, the phased array system is firstly divided into sub-arrays, that is, every M adjacent array elements are divided into a sub-array, and on the basis of sub-array division, N / M sub-arrays are divided according to the total number N of array elements, And divide the activation area to build the activation calculation module; then calculate offline the direction vector pointed by each sub-array and the maximum angle pointed to by all the array elements in the sub-array, and store it in the storage unit of the activation calculation module; when calculating the activation area, For each target beam, the activation calculation module reads the direction vector pointed by each sub-array from the storage unit, and then calculates the angle between each sub-array and the antenna beam pointing to the target in turn. When some sub-arrays cannot be determined to be activated, Then calculate the angle between the array elements in ...

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Abstract

A method for reducing the complexity of an array element activation algorithm of a phased array system proposed by the present invention aims at a method capable of reducing the amount of computation and significantly reducing the computational complexity. The present invention is realized by the following technical scheme: first, every M adjacent array elements are divided into a sub-array, and on the basis of sub-array division, N / M sub-arrays are divided into N / M sub-arrays according to the total number N of array elements, and an activation calculation is constructed. module; then calculate off-line the direction vector pointed by each sub-array and the maximum angle pointed by all array elements in the sub-array, and store it in the storage unit of the activation calculation module; when calculating the activation area, for each target beam, activate the calculation The module reads the direction vector pointed by each sub-array from the storage unit, and then calculates the angle between each sub-array and the antenna beam pointing to the target in turn. The angle between the element and the antenna beam pointing to the target.

Description

technical field [0001] The invention relates to the technical field of array signal processing, and a method for reducing the complexity of an array element activation algorithm of a phased array system, in particular to an antenna array element activation method suitable for reducing the computational complexity in a large conformal phased array system. Background technique [0002] Array signal processing is an important branch in the field of signal processing and has a wide range of applications. With the development of technology, conformal phased array can achieve multi-beam, full-space target search and tracking by using array signal processing technology. Compared with the traditional phased array technology, the conformal phased array greatly increases the computational complexity due to the large number of array elements and complex hardware, and puts forward higher requirements for the array signal processing algorithm. The direction in which the array has the gr...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/41G01S7/02G06F17/16
CPCG01S7/41G01S7/02G06F17/16
Inventor 潘云强吴述敏曾富华
Owner 10TH RES INST OF CETC