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Active false target identification method and system for multi-static radar

A multi-base, false target technology, applied in the field of radar, can solve the problem that multi-base radar anti-spoofing cannot be applied to multiple interference sources, etc., and achieve the effect of insensitivity to site errors

Active Publication Date: 2021-10-08
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a multistatic radar active false target identification method and system, which can overcome the problem that the existing multistatic radar anti-spoofing interference method cannot be applied to multiple interference sources

Method used

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  • Active false target identification method and system for multi-static radar
  • Active false target identification method and system for multi-static radar
  • Active false target identification method and system for multi-static radar

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Experimental program
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Embodiment 1

[0060] like figure 1 The embodiment of the present invention provides a multi-base Leunda active false goal objective identification method, including:

[0061] The received signal vector of the target is obtained, wherein the target is detected by multi-base radar;

[0062] According to the reception signal vector, the correlation coefficient between the two targets is calculated;

[0063] Cluster analysis of the target according to the correlation coefficients;

[0064] Using the threshold detection to identify the results of cluster analysis, obtain the category of clustering, whether or not the targets in the cluster are active false goals.

[0065] Specific steps are as follows:

[0066] Step 1: Get the received signal vector of the target.

[0067] The multi-base radar system consists of M transmitting stations and N receiving stations. Collaborative detection of the detection area, detects K target, and the reception signal vector of each target is X k The vector dimension ...

Embodiment 2

[0100]In this embodiment, a multi-base Rada active false target identification method provided by the present invention is used for computer simulation. Verify that the present invention performs differential power of the active false goal under the scene of fractive interference in the multi-interference source.

[0101] The multi-base station radar consists of two transmitting stations and five receiving stations, and the position coordinates of the transmitting station are [0, 0] M, [300, 0] m. The position coordinates of the receiving station are [-500, 0] m, [- 250, 0] M, [0, 0] M, [250, 0] M, [500, 0] m. The transmitting station and the receiving station antenna gain are gain. T1 = G R1 = G R2 = G R3 = 20dB. There is a aircraft formation in the probe area, composed of two aircraft and two interference machines, and each interference machine produces a source of the source of 10.

[0102] The Signal-Noise Ratio, SNR is defined as the SNR in the first receiving station, and th...

Embodiment 3

[0111] Embodiments of the present invention provide a multi-base Leunda active false goal target identification system, including:

[0112] Get Module: The received signal vector for obtaining the target detected by the multi-base radar;

[0113] Related coefficient calculation module: Used to calculate the correlation coefficient between the two targets according to the reception signal vector;

[0114] Cluster Analysis Module: Used to cluster analysis of the target according to the correlation coefficient;

[0115] Identification Module: Used to use threshold detection to identify the results of cluster analysis, obtain clustering categories, to obtain or have a source of false goals in clustering, based on clustering categories.

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Abstract

The invention discloses an active false target identification method and system for a multi-static radar. The method comprises the steps of: obtaining received signal vectors of targets which are detected by a multi-static radar; calculating a correlation coefficient between every two targets according to the received signal vectors; performing clustering analysis on the targets according to the correlation coefficients; and identifying a clustering analysis result by adopting threshold detection to obtain the category of the cluster, and determining whether each target in the cluster is an active false target according to the clustering category. According to the method, the problem that the existing multi-static radar anti-deception jamming method cannot be applied to multiple interference sources can be solved.

Description

Technical field [0001] The present invention relates to a multi-base radiotype active false goal objective identification method and system belonging to the field of radar technology. Background technique [0002] Deceive interference refers to the transmitted signal after intercepting the radar transmitting signal and analyzing its parameters, which generates many active false goals around the real target, so that the radar does not correctly recognize it. Real goal. In particular, the rapid development of advanced periods such as large-scale integrated circuits and digital radio frequency storage, the interference machine can instantly imitate the radar emission waveform, realize the rapid high and realistic deception. [0003] Multi-base Thunder consists of a transmitting station, a receiving station or a transmit-receive station dispersed on a plurality of spaces, by combining the information of each receiving station in the system fusion center, completes target detection, t...

Claims

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Application Information

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IPC IPC(8): G01S7/41
CPCG01S7/414Y02A90/10
Inventor 赵珊珊杨彪易民举刘子威
Owner NANJING UNIV OF POSTS & TELECOMM
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