一种多基地雷达距离欺骗干扰识别与高速目标检测方法

By employing LFM signal processing and elliptical positioning methods for multistatic radar systems, the challenges of range deception interference identification and high-speed target detection under low signal-to-noise ratio conditions in multistatic radar were solved, achieving accurate identification of range deception interference and targets, as well as signal enhancement.

CN120294708BActive Publication Date: 2026-07-17UNIV OF ELECTRONICS SCI & TECH OF CHINA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Filing Date
2025-03-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to accurately identify range deception jamming by multi-station radar and effectively detect high-speed targets under low signal-to-noise ratio conditions, while monostation radars suffer from limited detection angles and reduced anti-jamming performance.

Method used

A multi-static radar system is employed, using LFM signals for down-conversion processing of target echoes and range deception jamming signals. Combined with pulse compression, RFT accumulation, cyclic matching of topology, and information entropy criterion, elliptical positioning is used to identify targets and range deception jamming.

Benefits of technology

Under different interference-to-signal ratios, effective identification of range deception interference and target, as well as signal accumulation enhancement, were achieved, improving detection accuracy and anti-interference capability.

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Abstract

本发明公开一种多基地雷达距离欺骗干扰识别与高速目标检测方法,应用于雷达抗干扰领域,针对高速目标检测时,距离欺骗干扰的强欺骗性导致真实目标检测失效的问题;本发明首先根据多基地雷达距离历史数学方程建立了干扰条件下的回波模型,在此基础上,通过拉东‑傅里叶变换(Radon Fourier Transform,RFT)实现单通道回波信号的相参积累;然后,利用基于拓扑结构的熵循环匹配方法完成各目标在不同通道匹配位置信息的获取;接着,将配对位置信息进行椭圆定位处理,实现对距离欺骗干扰与目标的识别;最后,对目标与距离欺骗干扰的识别结果进行恒虚警检测处理,获得目标检测结果。
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