张建中^{1, 2,,},
穆贺强¹,
文树梁¹,
李彦兵¹,
高红卫¹
1.北京无线电测量研究所 ??北京 ??100854
2.中国航天科工集团第二研究院 ??北京 ??100854

详细信息

作者简介:张建中：男，1985年生，博士生，研究方向为雷达电子对抗，波形设计，阵列信号处理
穆贺强：男，1967年生，研究员，主要研究方向为雷达总体设计，雷达电子对抗，雷达信号处理
文树梁：男，1971年生，研究员，博士生导师，主要研究方向为雷达总体设计，雷达信号处理

通讯作者:张建中　zhang.jianzhong@163.com

中图分类号:TN974

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出版历程

收稿日期:2018-08-31
修回日期:2019-01-21
网络出版日期:2019-02-14
刊出日期:2019-07-01

Anti-Intermittent Sampling Repeater Jamming Method Based on LFM Segmented Pulse Compression

Jianzhong ZHANG^{1, 2,,},
Heqiang MU¹,
Shuliang WEN¹,
Yanbing LI¹,
Hongwei GAO¹
1. Beijing Institution of Radio Measurement, Beijing 100854, China
2. The Second Academy of China Aerospace Science and Industry Corporation, Beijing 100854, China


摘要
摘要:得益于数字储频技术的快速发展，间歇采样转发干扰(ISRJ)得到广泛应用，现有抗干扰方法尚无法有效对抗此种干扰。在深入研究ISRJ的基础上，针对其时域采样不连续的特点，该文提出一种基于LFM分段脉冲压缩的抗间歇采样干扰方法。该方法利用LFM分段信号之间的正交性，结合掩护波形的思想，通过窄带滤波器组对干扰和目标进行分选，然后剔除干扰，最后在脉内和脉间进行积累。理论分析和仿真结果表明，分段脉冲压缩方法能有效对抗多干扰机情况下不同样式的间歇采样干扰组合。
关键词:间歇采样/
分段脉冲压缩/
抗干扰方法/
窄带滤波器组
Abstract:Benefiting from the rapid development of digital frequency storage technology, the Intermittent Sampling Repeater Jamming(ISRJ) is widely used. Existing radar anti-jamming means are hard to against this jamming effectively. Based on the analysis of the principles of the ISRJ, for the discontinuities of ISRJ in time domain, an anti-ISRJ method based on LFM segmented pulse compression is proposed. This method utilizes the orthogonality between LFM segmented signals, combines with cover waveform concept, distinguishes jamming and target through narrow band filter group, then suppresses jamming, finally accumulates signals in intra-pulse and inter-pulse. Theoretical analysis and experimental results show the anti-ISRJ method can effectively resist the intermittent sampling interference which combines with different styles of multiple jammers.
Key words:Intermittent sampling/
Segmented pulse Compression/
Anti-jamming method/
Narrow band filter group



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