Array Anti-jamming Method of Conjugate Gradient

A conjugate gradient and array technology, applied in the direction of communication interference, electrical components, etc., can solve the problems of large covariance matrix, slow weight update, increased calculation amount, etc., to reduce the number of iterations, easy to change, easy to debug Effect

Active Publication Date: 2022-07-26
NANJING BUWEI COMM EQUIP CO LTD
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Problems solved by technology

[0004] When the number of array elements increases or the space-time algorithm is used, the covariance matrix will become very large, and the direct inversion algorithm will significantly increase the amount of calculation, resulting in slower weight update

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  • Array Anti-jamming Method of Conjugate Gradient
  • Array Anti-jamming Method of Conjugate Gradient
  • Array Anti-jamming Method of Conjugate Gradient

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[0043] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

[0044] Examples of such embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0045] refer to Figure 1-2 , according to a conjugate gradient array anti-interference method according to an embodiment of the present invention, the method steps are as follows:

[0046] Step 1. Construct an optimization problem ...

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Abstract

The invention discloses a conjugate gradient array anti-jamming method. The method steps are as follows: Step 1. Build an adaptive array anti-jamming optimization problem model constructed by a signal model for satellite navigation and positioning, radar detection and wireless communication application scenarios; Step 2, based on the conjugate gradient theory, use a low-complexity conjugate iterative algorithm to solve the weight of each antenna or sensor in the adaptive array; Step 3, use a field programmable device to realize the real-time solution of the weight. The invention utilizes the iterative weight calculation of the conjugate gradient, which can effectively reduce the complexity of the traditional algorithm, realize fast self-adaptive anti-jamming calculation, and can meet the real-time anti-jamming requirements of sports equipment.

Description

technical field [0001] The invention relates to the technical field of multi-sensing or antenna anti-jamming array signal processing, in particular to a conjugate gradient array anti-jamming method. Background technique [0002] Array anti-jamming technology is often used in application scenarios such as satellite navigation and positioning, radar detection, and wireless communication. Typical jamming includes suppressive jamming and deceptive jamming, among which suppressing jamming is the most widely used. For suppressing jamming, the most effective method at present is the power inversion method. The power inversion method attempts to minimize the output power of the array for the purpose of suppressing interference, and its adaptive nature may result in the suppression of useful signals in processing. And when the useful signal level is below the noise, the adaptive array will not suppress the useful signal. In this application scenario, this adaptive anti-jamming algo...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04K3/00
CPCH04K3/43H04K2203/34
Inventor 陈鹏韩蔚峰曹振新
Owner NANJING BUWEI COMM EQUIP CO LTD
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