空军工程大学学报2025，Vol.26Issue(5)：42-53,12.DOI:10.3969/j.issn.2097-1915.2025.05.005
基于小波包分解的LFM雷达抗间歇采样转发干扰方法
Wavelet Packet Decomposition-Based Anti-ISRJ Method for LFM Radar
摘要
Abstract
This study addresses the significant impact of interrupted-sampling repeater jamming(ISRJ)on linear frequency modulated radar target detection performance by introducing a novel anti-jamming tech-nique grounded in wavelet packet decomposition.The proposed method innovatively constructs a jamming suppression framework based on invariant feature extraction,leveraging waveform prior information of ra-dar signals.This approach overcomes the limitations associated with traditional strategies centered around"jamming parameter estimation+jamming suppression",which are prone to loss of target information.Experimental results indicate that the method demonstrates superior capability in preserving target infor-mation under conditions of low jamming-to-signal ratio,high overlap of jamming and target signals,and complex jamming scenarios,outperforming conventional time-domain and time-frequency domain methods by achieving target information loss of less than 1.67%.The method significantly enhances target detec-tion accuracy,showing robust performance in complex jamming environments and effectively mitigating ISRJ-induced jamming,thus exhibiting substantial application potential.关键词
间歇采样转发干扰/小波包分解/抗干扰Key words
ISRJ/wavelet packet decomposition/anti-jamming分类
信息技术与安全科学引用本文复制引用
张钰,郭艺夺,张秋月,冯存前..基于小波包分解的LFM雷达抗间歇采样转发干扰方法[J].空军工程大学学报,2025,26(5):42-53,12.基金项目
国家自然科学基金(62301598,62471484) （62301598,62471484）
陕西省自然科学基础研究计划(2025JC-YBQN-868) （2025JC-YBQN-868）
陕西省教育厅青年创新团队科研计划(24JP221) （24JP221）
