Radar deception jamming detection method with digital radio frequency memory

被引：0
|
作者：
Zhang S. [1 ]
Chen S. [1 ]
Wang W. [2 ]
机构：
[1] Research Institute of Electronic Science and Technology, University of Electronic Science and Technology of China, Chengdu
[2] School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu
来源：
Guofang Keji Daxue Xuebao/Journal of National University of Defense Technology | 2024年 / 46卷 / 02期
关键词：
active deceptive jamming; digital radio frequency memory; Hough transform; jamming detection;
D O I：
10.11887/j.cn.202402018
中图分类号：
学科分类号：
摘要：
The transponder deception jamming with DRFM(digital radio frequency memory) is highly coherent with real radar echoes, which makes it difficult for radar to distinguish real radar echoes and jamming. To address this issue, a DRFM-based deception jamming detection method based on Hough transform was proposed. The jamming signal model based on linear frequency modulation was established and the spectrum of the jamming harmonics was analyzed subsequently. Then, the short-time Fourier transform and two-dimensional constant false alarm rale detector were used to extract the features of the jamming signal. The Hough transform was used to complete deception jamming detection. The proposed method is based on the characteristics of DRFM deception jamming itself, and does not depend on prior information and application scenario. Moreover, it has low computational complexity and good detection performance under the condition of low signal-to-noise. The effectiveness of the proposed method is verified through simulations. © 2024 National University of Defense Technology. All rights reserved.
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页码：174 / 181
页数：7
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