J4 ›› 2009, Vol. 36 ›› Issue (6): 1021-1026+1033.

• 研究论文 • 上一篇    下一篇

MIMO雷达发射方向图匹配和波形优化方法

胡亮兵;刘宏伟;刘保昌;吴顺君   

  1. (西安电子科技大学 雷达信号处理重点实验室,陕西 西安  710071)
  • 收稿日期:2009-05-11 出版日期:2009-12-20 发布日期:2010-01-20
  • 通讯作者: 胡亮兵
  • 作者简介:胡亮兵(1982-),男,西安电子科技大学博士研究生,E-mail: huliangbing2000@163.com.
  • 基金资助:

    “教育部长江学者和创新团队支持计划”资助(IRT0645);国家自然科学基金资助(60772140);国家部委预研项目及国家部委预研基金联合资助

Transmit beampattern matching design and waveform optimization for MIMO radar

HU Liang-bing;LIU Hong-wei;LIU Bao-chang;WU Shun-jun   

  1. (Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2009-05-11 Online:2009-12-20 Published:2010-01-20
  • Contact: HU Liang-bing

摘要:

为了匹配MIMO雷达系统给定的发射方向图,采用半正定规划(SDP)来优化发射信号的协方差矩阵.基于该协方差矩阵,利用循环算法(CA)和极小极大法,通过优化波形相位设计出了具有低空域和时域副瓣的恒模发射信号.此外,又提出了用凸规划设计空域失配滤波器和时域失配滤波器的方法,进一步降低了空域和时域副瓣.

关键词: MIMO雷达, 发射方向图匹配, 波形优化设计, 极小极大法, 凸规划

Abstract:

A covariance matrix of transmit signal waveforms is optimized via semi-definite programming (SDP) for matching the desired transmit beampattern of an MIMO radar system. Based on the covariance matrix above and using the cyclic algorithm (CA) and the min-max method proposed, low space-time sidelobes are achieved by optimizing waveform phases of the transmit signal waveforms with constant modulus. Additionally, a convex programming method is proposed to design the space-time mismatched filters, and then the space-time sidelobes are furthermore reduced.

Key words: MIMO radar, transmit beampattern matching design, waveform optimization, min-max method, convex programming

中图分类号: 

  • TN957
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