论文:2021,Vol:39,Issue(6):1349-1355
引用本文:
汪涛, 陈梓浩, 程志伟, 邓晓波, 梁军利, 白建超. 恒模发射波形和非匹配滤波器的联合设计[J]. 西北工业大学学报
WANG Tao, CHEN Zihao, CHENG Zhiwei, DENG Xiaobo, LIANG Junli, BAI Jianchao. Joint design of mismatched filter and unimodular transmit waveform[J]. Northwestern polytechnical university

恒模发射波形和非匹配滤波器的联合设计
汪涛1, 陈梓浩1, 程志伟1, 邓晓波2, 梁军利1, 白建超3
1. 西北工业大学 电子信息学院, 陕西 西安 710072;
2. 中航工业雷华电子技术研究所, 江苏 无锡 214063;
3. 西北工业大学 数学与统计学院, 陕西 西安 710072
摘要:
为改善接收端的探测效果,提出一种恒模发射波形和非匹配滤波器的联合设计方法,应用交替方向乘子法(alternating direction method of multipliers,ADMM)对所构造的数学优化模型进行了求解。通过引入多个辅助变量解除非凸优化问题和复杂约束的耦合关系,结合分式优化技术并构造分段阶跃函数,对子问题加以处理得出最优解。此外,还将此类联合优化设计扩展用于已知雷达发射波形基础上的接收端非匹配滤波器设计。仿真实验表明,所提出的联合设计方法可有效降低脉压输出的旁瓣。
关键词:    雷达目标探测    非匹配滤波器设计    恒模波形设计    交替方向乘子法    旁瓣抑制   
Joint design of mismatched filter and unimodular transmit waveform
WANG Tao1, CHEN Zihao1, CHENG Zhiwei1, DENG Xiaobo2, LIANG Junli1, BAI Jianchao3
1. School of Electronics and Information, Northwestern Polytechnical University, Xi'an 710072, China;
2. AVIC Leihua Electronic Technology Institute, Wuxi 214063, China;
3. School of Mathematics and Statistics, Northwestern Polytechnical University, Xi'an 710072, China
Abstract:
To improve the receiver performance, unimodular transmit waveform and mismatched filter are jointly designed by using the alternating direction method of multipliers (ADMM). A series of auxiliary variables are introduced to decouple the variables in objective function and additional constrains. Denominator normalization(fractional programming technology) and step function are applied to obtain optimal solution from some subproblems. For given transmit waveform, same-length mismatched filter is designed in receiver. The low sidelobe level performance of the present methods are illustrated with the simulation results.
Key words:    target detection    mismatched filter design    unimodular waveform design    alternating direction method of multipliers(ADMM)    sidelobe suppression   
收稿日期: 2021-03-24     修回日期:
DOI: 10.1051/jnwpu/20213961349
基金项目: 国家自然科学基金(12001430)、航空科学基金(201920053001)与陕西省重点研发计划(2021SF-166)资助
通讯作者: 梁军利(1978-),西北工业大学教授,主要从事雷达信号处理、6G研究。e-mail:liangjunli@nwpu.edu.cn     Email:liangjunli@nwpu.edu.cn
作者简介: 汪涛(1997-),西北工业大学硕士研究生,主要从事阵列信号处理、波形设计研究。
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