Design of (Quasi) Complementary Waveform with Doppler Resilience for Range Sidelobe Suppression

被引:0
|
作者
Wu, Zhong-Jie [1 ,2 ]
Wang, Chen-Xu [2 ]
Zhou, Zhi-Quan [2 ]
Feng, Xiang [1 ,2 ]
机构
[1] Harbin Inst Technol, Sch Elect & Informat Engn, Harbin, Peoples R China
[2] Harbin Inst Technol Weihai, Sch Informat Sci & Engn, Weihai, Peoples R China
来源
2020 IEEE RADAR CONFERENCE (RADARCONF20) | 2020年
基金
中国国家自然科学基金;
关键词
waveform diversity and design; range sidelobe suppression; complementary waveform; cognitive radar;
D O I
10.1109/radarconf2043947.2020.9266661
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper is devoted to constructing Doppler resilient (quasi) complementary waveforms (DRCW/DRQCs) out of conventional complementary pairs via the joint design of both transmit pulse trains and receive pulse weights. The design of DRCWs is formulated to maximize the SNR under several Doppler null point constraints. It turns out to be a two-way partitioning problem, and is approximately solved by semidefinite programming relaxation and randomization techniques. The design of DRQCWs is a spectrum shaping problem with a low modulus variation constraint. A suboptimal solution can be efficiently computed via FFT under the Majorization-Minimization framework. Our methods can generate DRCW/DRQCWs with multiple range sidelobe blanking areas at arbitrary Doppler shifts and acceptable decreases in the SNR and Doppler resolution. Based on those properties, a novel waveform emission scheme for cognitive radar is proposed, which shows great promise in many applications like detecting small-RCS and low-speed targets.
引用
收藏
页数:6
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