李德鑫,,
粟毅,
何峰,
刘涛
国防科技大学电子科学学院 长沙 410073
基金项目:国家自然科学基金(61774178, 61901501)
详细信息
作者简介:周凯：男，1993年生，博士生，研究方向为雷达波形设计、雷达抗干扰技术
李德鑫：男，1989年生，讲师，研究方向为雷达波形设计、合成孔径雷达成像
粟毅：男，1961年生，教授，博士生导师，研究方向为新体制雷达系统、雷达信号处理
何峰：男，1976年生，教授，研究方向为合成孔径雷达成像、雷达波形设计
刘涛：男，1988年生，讲师，研究方向为合成孔径雷达成像、雷达信号处理
通讯作者:李德鑫 lidexin0117@hotmail.com
中图分类号:TN974计量
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被引次数:0
出版历程
收稿日期:2020-04-24
修回日期:2020-12-09
网络出版日期:2020-12-19
刊出日期:2021-07-10
Joint Transmitted Waveform and Mismatched Filter Design against Interrupted-sampling Repeater Jamming
Kai ZHOU,Dexin LI,,
Yi SU,
Feng HE,
Tao LIU
College of Electronic Science, National University of Defense Technology, Changsha 410073, China
Funds:The National Natural Science Foundation of China (61774178, 61901501)
摘要
摘要:间歇采样转发干扰(ISRJ)是基于欠采样原理的新型雷达相干干扰技术，能够形成密集假目标干扰。该文针对抗间歇采样转发干扰问题，提出一种雷达发射波形和非匹配滤波联合设计的抗干扰方法。首先，以发射信号脉冲压缩积分旁瓣能量和干扰信号非匹配滤波输出积分能量为目标函数，综合考虑发射信号的幅度约束，建立了间歇采样转发干扰抑制的数学优化模型。然后，通过问题分解推导了雷达发射波形和非匹配滤波器的解析表达式，基于迭代算法设计了发射波形和非匹配滤波器。最后，通过仿真实验的方式验证了发射波形和非匹配滤波器的性能、抗间歇采样转发干扰性能以及所提方法的间歇采样转发干扰抑制能力。
关键词:波形设计/
非匹配滤波/
抗干扰/
间歇采样转发干扰
Abstract:Interrupted-Sampling Repeater Jamming (ISRJ) is an advanced radar coherent interference based on the principle of under-sampling method, and achieves a train of false targets. In this paper, a joint transmitted waveform and mismatched filter design method focus on suppressing the ISRJ is proposed. Firstly, the mathematical optimization model is established by minimizing the transmitted signal pulse compression integrated sidelobe level and jamming signal mismatched filter output integrated level under the constraint of constant modulus waveform. Secondly, the analytical solution of transmitted waveform and mismatched filter is obtained by simplifing the optimization problem. By utilizing cyclic iterative algorithm, unimodular waveform and mismatched filter are produced. Finally, simulations are presented to assess the waveform and filter performance and anti-ISRJ performance. Simulation results demonstrated that the ISRJ is suppressed by jointly designing the waveform and filter.
Key words:Waveform design/
Mismatched filter/
Anti-interference/
Interrupted-Sampling Repeater Jamming (ISRJ)
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https://jeit.ac.cn/article/exportPdf?id=73a4ae9d-d1c4-4354-8ac0-33070ed7885b
