Aiming to improve the detection performance of colocated multiple-input-multiple-output (MIMO) radar in the presence of strong clutter,we addressed the joint optimization problem of the waveform and receiver based on maximizing signal to clutter plus noise ratio (SCNR).Considering that practical radar systems employ constant envelope signals,we also imposed a constant envelope constraint on the waveform.During the optimizations,we divided the joint design problem into two steps,and proposed an algorithm for the design of the constant envelope waveform based on semi-definite relaxation (SDR) and Gaussian randomizations.Numerical simulations show that the proposed algorithm converges with increasing SCNR.Moreover,compared with the optimal waveform under the energy constraint,the SCNR loss is negligible.Finally,the capability of adaptive clutter suppression and improved detection performance of the proposed algorithm is clearly demonstrated.
作者简介: 唐 波 男，1985年8月生于江西临川，2006年和2011年于清华大学电子工程系获工学学士和工学博士学位，现为电子工程学院讲师.研究兴趣主要包括自适应阵列信号处理、雷达波形设计等，主持了国家自科基金、安徽省自科基金等多项科研项目，在IEEE Trans signal processing等国内外刊物发表论文30余篇，其中被SCI检索10余篇，EI检索20余篇，并获省部级科技进 步三等奖2项. E-mail：tangbo06@gmail.com；张 玉 男，1962年10月生于安徽芜湖，1989年毕业于电子工程学院获工学硕士学位，现为电子工程学院教授，研究兴趣主要包括雷达信号处理、通信信号处理等. E-mail：ZY_66582@163.com；李 科 男，1984年11月出生于安徽合肥，2010年毕业于上海大学获工学硕士学位，现为电子工程学院教员，研究兴趣主要为信号处理. E-mail：bsb_like@163.com；高 辉 男，1975年4月出生于安徽寿县，2007年毕业于安徽工程大学获工学硕士学位，现为电子工程学院讲师，研究兴趣主要为信号处理. E-mail：pangtough@163.com
引用本文:
唐波, 张玉, 李科, 高辉. 杂波中MIMO雷达恒模波形及接收机联合优化算法研究[J]. 电子学报, 2014, 42(9): 1705-1711.
TANG Bo, ZHANG Yu, LI Ke, GAO Hui. Joint Constant-Envelope Waveform and Receiver Design for MIMO Radar in the Presence of Clutter. Chinese Journal of Electronics, 2014, 42(9): 1705-1711.
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