系统工程与电子技术 ›› 2023, Vol. 45 ›› Issue (5): 1333-1341.doi: 10.12305/j.issn.1001-506X.2023.05.09

• 传感器与信号处理 • 上一篇    

低多普勒敏感的抗间歇采样转发干扰波形设计方法

何金阳1, 程子扬1,*, 李绽蕾1, 何子述1, 沙明辉2   

  1. 1. 电子科技大学信息与通信工程学院, 四川 成都 611731
    2. 北京无线电测量研究所, 北京 100854
  • 收稿日期:2021-12-05 出版日期:2023-04-21 发布日期:2023-04-28
  • 通讯作者: 程子扬
  • 作者简介:何金阳(1999—), 男, 博士研究生, 主要研究方向为雷达波形设计
    程子扬(1990—), 男, 副研究员, 博士, 主要研究方向为MIMO雷达波形优化设计、雷达信号处理中的优化理论
    李绽蕾(1998—), 女, 硕士研究生, 主要研究方向为认知抗干扰
    何子述(1962—), 男, 教授, 博士, 主要研究方向为干扰与杂波抑制理论与算法、目标检测与参数估计
    沙明辉(1986—), 男, 研究员, 博士, 主要研究方向为雷达抗干扰、信号处理

Low Doppler sensitive waveform design method against interrupted sampling repeater jamming

Jinyang HE1, Ziyang CHENG1,*, Zhanlei LI1, Zishu HE1, Minghui SHA2   

  1. 1. School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
    2. Beijing Institute of Radio Measurement, Beijing 100854, China
  • Received:2021-12-05 Online:2023-04-21 Published:2023-04-28
  • Contact: Ziyang CHENG

摘要:

针对间歇采样转发干扰, 研究了脉内正交的工作波形和保护波形设计方法抑制干扰, 考虑到设计波形的多普勒敏感性, 以低多普勒敏感约束和互相关函数加权和最小为目标函数、波形恒模为约束条件建立优化问题。由于该问题包含非凸四阶目标函数和非凸约束, 难以得到闭式解, 因此设计了一种基于循环算法的方法进行求解。最后, 通过仿真实验和已有波形进行对比, 验证了所设计波形具有较低多普勒敏感性, 同时能够有效对抗间歇采样转发干扰。

关键词: 低多普勒敏感, 间歇采样, 干扰对抗, 波形设计, 循环算法

Abstract:

For interrupted sampling repeater jamming (ISRJ), this paper investigates the intra-pulse orthogonal working and protection waveform design method to suppress ISRJ. Considering the low Doppler sensitivity, the optimization problem is formulated by minimizing the weighted sum of the low Doppler sensitive and correlation function under the constraint of constant modulus. Since the problem involves a nonconvex fourth-order objective and a nonconvex constraint, it is difficult to obtain a closed-form solution. Therefore, a method based on cyclic algorithm is devised to solve the problem. Finally, compared with the existing waveform, the simulation results show that the designed waveform has low Doppler sensitivity and can counter ISRJ effectively.

Key words: low Doppler sensitivity, interrupted sampling, jamming countermeasure, waveform design, cyclic algorithm

中图分类号: