雷达脉冲压缩低旁瓣发射波形和非匹配滤波联合设计方法

doi:10.12263/DZXB.20201405

电子学报 ›› 2021, Vol. 49 ›› Issue (9): 1701-1707.DOI: 10.12263/DZXB.20201405

雷达脉冲压缩低旁瓣发射波形和非匹配滤波联合设计方法

周凯, 李德鑫, 粟毅, 何峰, 刘涛

国防科技大学电子科学学院, 湖南长沙 410073

收稿日期:2020-12-08 修回日期:2021-06-21 出版日期:2021-10-21
- 作者简介:
- 周　凯　男，1993年生于湖南岳阳.现为国防科技大学电子科学学院博士研究生.主要研究方向为合成孔径雷达成像技术，雷达波形设计和雷达抗干扰技术.E-mail:zhoukai15@nudt.edu.cn
  李德鑫（通信作者）　男，1989年生于河南民权.现为国防科技大学电子科学学院讲师.主要研究方向为合成孔径雷达信号处理.E-mail:lidexin@nudt.edu.cn
  粟　毅　男，1961年出生于山东泰安，现为国防科技大学电子科学学院教授，博士生导师，主要从事雷达信号处理、遥感信息处理的研究.E-mail:y.su@yeah.net
  何　峰　男，1976年出生于湖北孝感，现担任国防科技大学电子科学学院研究员.主要研究方向为雷达信号处理.E-mail:hefeng@nudt.edu.cn
  刘　涛　男，1988年出生于山东泰安，现为国防科技大学电子科学学院讲师，主要研究方向为雷达信号处理，新体制雷达系统与技术.E-mail:liutao.apo@gmail.com
- 基金资助:
- 国家自然科学基金 (61771478)

Joint Design of Transmitted Waveform and Mismatched Filter Suppressing Radar Pulse Compression Sidelobe Level

ZHOU Kai, LI De-xin, SU Yi, HE Feng, LIU Tao

College of Electronic Science and Technology, National University of Defense Technology, Changsha, Hunan 410073, China

Received:2020-12-08 Revised:2021-06-21 Online:2021-10-21 Published:2021-09-25
- Supported by:
- National Natural Science Foundation of China (61771478)

摘要/Abstract

摘要：

为有效抑制雷达波形的脉冲压缩旁瓣水平，提高雷达弱目标检测和成像性能，本文提出了雷达波形和滤波器联合设计抑制脉冲压缩旁瓣水平的方法，建立了雷达波形和滤波器联合设计数学模型，基于分块坐标下降方法分解了联合设计问题，提出了一种联合优化算法，将该方法扩展到了正交波形和滤波器组设计，并提出一种并行优化的联合设计方法.仿真结果表明，本文方法比传统方法具有更快的运行速度.该方法可有效扩展至正交波形和滤波器组设计问题.

关键词: 波形设计, 非匹配滤波器, 正交波形, 积分旁瓣, 峰值损耗, 分块坐标下降

Abstract:

This paper presents a method by jointly designing the transmitted waveform and mismatched filter to suppress the pulse compression sidelobe level, thereby improving the detection and imaging performance of weak target. A waveform and mismatched filter joint design algorithm is proposed based on block-coordinate-descent optimization framework. Simulation results show that the proposed method improves the pulse compression sidelobe performance with slight loss in the processing gain, and outperforms the conventional joint design method in terms of running time. Besides, the design scheme is extended to orthogonal waveform set and mismatched filter bank design, and a joint design method is proposed based on parallel optimization. The designed waveform set and mismatch filters show good orthogonality performance.

Key words: waveform design, mismatched filter, orthogonal waveform, integrated sidelobe levels, loss of processing gain, block coordinate descent method

中图分类号:

TN957

周凯, 李德鑫, 粟毅, 等. 雷达脉冲压缩低旁瓣发射波形和非匹配滤波联合设计方法[J]. 电子学报, 2021, 49(9): 1701-1707.

Kai ZHOU, De-xin LI, Yi SU, et al. Joint Design of Transmitted Waveform and Mismatched Filter Suppressing Radar Pulse Compression Sidelobe Level[J]. Acta Electronica Sinica, 2021, 49(9): 1701-1707.

图/表 7

参考文献 23

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方法	积分旁瓣比/dB	峰值损耗/dB
CAN法	‒12.69	0
加速MISL法	‒13.63	0
本文方法	‒14.62	-0.09dB

方法	积分旁瓣比/dB	峰值损耗/dB
CAN法	‒12.69	0
加速MISL法	‒13.63	0
本文方法	‒14.62	-0.09dB

方法	参数	64	128	256	512	1024	2048	4096
LBFGS	平均运行时间/s	10.16	44.36	591.21	6278.91	--	--	--
	平均峰值损耗/dB	‒0.53	‒0.50	‒0.47	‒0.47	--	--	--
	平均积分旁瓣比/dB	‒15.01	‒14.92	‒15.72	‒15.78	--	--	--
本文方法	平均运行时间/s	0.46	1.12	5.87	27.25	164.82	879.63	6103.12
	平均峰值损耗/dB	‒1.16	‒0.96	‒0.92	‒1.15	‒1.23	‒1.09	‒0.87
	平均积分旁瓣比/dB	‒15.83	‒15.22	‒16.31	‒16.60	‒16.89	‒16.61	‒16.34

方法	参数	64	128	256	512	1024	2048	4096
LBFGS	平均运行时间/s	10.16	44.36	591.21	6278.91	--	--	--
	平均峰值损耗/dB	‒0.53	‒0.50	‒0.47	‒0.47	--	--	--
	平均积分旁瓣比/dB	‒15.01	‒14.92	‒15.72	‒15.78	--	--	--
本文方法	平均运行时间/s	0.46	1.12	5.87	27.25	164.82	879.63	6103.12
	平均峰值损耗/dB	‒1.16	‒0.96	‒0.92	‒1.15	‒1.23	‒1.09	‒0.87
	平均积分旁瓣比/dB	‒15.83	‒15.22	‒16.31	‒16.60	‒16.89	‒16.61	‒16.34

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雷达脉冲压缩低旁瓣发射波形和非匹配滤波联合设计方法

Joint Design of Transmitted Waveform and Mismatched Filter Suppressing Radar Pulse Compression Sidelobe Level

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