抗移频间歇采样转发干扰波形与非匹配滤波器设计方法

doi:10.12305/j.issn.1001-506X.2025.07.13

摘要/Abstract

摘要：

移频间歇采样转发干扰(shift-frequency interrupted sampling repeater jamming, SFISRJ)兼具两种干扰的优点, 严重威胁雷达探测。对此，提出一种基于波形与非匹配滤波器设计的抗SFISRJ方法。兼顾干扰抑制和脉冲压缩性能, 建立无约束多目标联合优化模型, 推导目标函数梯度, 并提出基于限制内存BFGS(limited-memory Broyden-Fletcher-Goldfarb and Shannon, L-BFGS)的联合设计算法。仿真验证了所提算法的可行性, 尤其当真实目标和假目标在时域和时频域不可分离时, 所提算法相较于传统方法能够取得最优抗干扰性能。

关键词: 移频间歇采样转发干扰, 波形设计, 非匹配滤波器, 梯度下降

Abstract:

Shift frequency interrupted sampling repeat jamming (SFISRJ) combines the advantages of both types of interference and poses a serious threat to radar detection. An anti-SFISRJ method based on waveform and mismatch filter design is proposed. Taking both interference suppression and pulse compression performance into account, an unconstrained multi-objective joint optimization model is established, the gradient of the objective function is derived, and a joint design method based on limited-memory Broyden Fletcher Goldfarb and Shannon (L-BFGS) is proposed. The feasibility of the proposed algorithm is verified simulation, especially when the real and fake targets are inseparable in the time and time-frequency domains, the proposed algorithm can achieve the best anti-interference performance compared to traditional methods.

Key words: shift-frequency interrupted sampling repeater jamming (SFISRJ), waveform design, mismatched filter, gradient descent

中图分类号:

TN972

周凯, 李超, 李坤, 崔新风, 姚辉伟, 陈冬冬. 抗移频间歇采样转发干扰波形与非匹配滤波器设计方法[J]. 系统工程与电子技术, 2025, 47(7): 2194-2204.

Kai ZHOU, Chao LI, Kun LI, Xinfeng CUI, Huiwei YAO, Dongdong CHEN. Design of waveform and mismatched filter for suppressing shift-frequency interrupted sampling repeater jamming[J]. Systems Engineering and Electronics, 2025, 47(7): 2194-2204.

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p	LPG	ISLR	PSLR	JER	JPLR
2	-0.50	-11.99	-29.43	-8.90	-23.49
10	-0.50	-8.24	-30.74	-6.91	-27.59

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