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Method and device for separating radar target signal and interference signal

A technology of jamming signal and target signal, applied in the field of radar target signal and jamming signal separation, can solve the problem of not being able to suppress interference well, and unable to find the real target.

Active Publication Date: 2021-04-23
AIR FORCE UNIV PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present application is to provide a method and device for separating radar target signals and interference signals, so as to solve the technical problem that the interference cannot be well suppressed, so that the real target cannot be found

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  • Method and device for separating radar target signal and interference signal
  • Method and device for separating radar target signal and interference signal
  • Method and device for separating radar target signal and interference signal

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Embodiment Construction

[0069] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0070] When the radar is interfered, the frontier tracking, distance protection gate, wide gate tracking, memory gate tracking and other gate tracking strategies are generally adopted in the early stage. Most of the anti-jamming methods currently used are based on the interference detection method based on the difference between the target and the interference amplitude characteristics, the interference suppression method using space-time adaptation and polarization processing, and some other signal or data processing interference suppression methods. Among them, in the process of countering the jamming signal, the above methods all have the problem that the jamming signal received by the single-channel radar cannot be well suppressed, so that the real target cannot be found. The radar target signal...

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Abstract

The application provides a method and device for separating a radar target signal and an interference signal, including: receiving an observation signal; wherein, the observation signal includes a target signal and an interference signal, and the observation signal is a single-channel signal; the single-channel signal is expanded into Dual-channel signal; the target signal is separated from the dual-channel signal using a blind separation algorithm. Therefore, for the observed signal including the interference signal, firstly, the single-channel signal is expanded into a dual-channel signal through polarization channel expansion, and then the target signal and the interference signal are separated from the observation signal by using the blind separation algorithm, so as to obtain In this case, suppress the interference signal and find the target signal.

Description

technical field [0001] The present application relates to the field of signal processing, in particular to a method and device for separating radar target signals and interference signals. Background technique [0002] When the radar is interfered by compound towing, the early frontal tracking, distance protection gate, wide gate tracking, memory gate tracking and other gate tracking strategies will be invalid. Most of the existing interference detection methods based on the difference between target and interference amplitude characteristics, interference suppression methods using space-time adaptation and polarization processing, and other interference suppression methods for signal or data processing cannot suppress interference well. Therefore, the true target cannot be found. Contents of the invention [0003] The purpose of the embodiment of the present application is to provide a method and device for separating a radar target signal and an interference signal, so ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/36
CPCG01S7/36
Inventor 宫健王春阳郭艺夺冯存前王欢原慧宋宝军肖宇
Owner AIR FORCE UNIV PLA