首页|A method for active deception jamming discrimination based on frequency response

A method for active deception jamming discrimination based on frequency response

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There are many types of radar active deception false target jamming that are highly cor-related with the real target.Recognizing the real and false targets under a low Signal-to-Noise Ratio(SNR)is difficult.To solve the above problem,this article proposes a real/false target recognition method based on the features of multi-pulse joint frequency response by analyzing the differences in the scattering characteristics and modeling real target echoes as a synthesis of multi-scattering cen-ter echoes.Firstly,in the range-doppler domain,the real and false targets are truncated along the range dimension,and a fast Fourier transform is performed to extract the features of multi-pulse joint frequency response.Then,a two-channel feature fusion network is designed for real and false target recognition.Finally,a Multi-Coherent Processing Interval Joint Decision Method(M-CPIJDM)based on temporal information is proposed to improve the recognition perfor-mance.Experiments using the measured data show that the proposed method can well recognize real and false target signals under four jamming backgrounds:distance false target,velocity false target,distance-velocity composite false target,and forwarding dense false target.

Active deception false target jammingMulti-scattering center echoMulti-pulse joint frequency response featureTwo-channel feature fusion networkMulti-coherent processing interval joint decision

Wenbin WEI、Ruihui PENG、Yunlong DONG、Dianxing SUN、Le XU、Guohong WANG

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Qingdao Innovation and Development Base of Harbin Engineering University,Harbin Engineering University,150001,China

Institute of Information Fusion,Navy Aeronautical University,Yantai 264001,China

Basic Research Program,ChinaChina Aerospace Science and Technology Corporation Stabilization Support ProjectEquipment Preresearch Project,China

514010503-208ZY0110020009304060201

2024

10.1016/j.cja.2023.12.033

中国航空学报(英文版)
中国航空学会

中国航空学报(英文版)

CSTPCDEI
影响因子：0.847
ISSN：1000-9361
年,卷(期)：2024.37(6)
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