Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (2): 319-322.

• 传感器与信号处理 • 上一篇    下一篇

MIMO雷达约束总体最小二乘改进算法

曲毅1,2, 廖桂生1, 李军1, 姜晖1   

  1. 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;
    2. 武警工程学院通信工程系, 陕西, 西安, 710086
  • 收稿日期:2007-09-19 修回日期:2008-03-19 出版日期:2009-02-20 发布日期:2010-01-03
  • 作者简介:曲毅(1976- ),男,讲师,博士研究生,主要研究方向为MIMO雷达与空时二维信号处理.E-mail:wjquyi@sina.com
  • 基金资助:
    教育部重点项目(107102);国家部委预研重点基金项目(9140A07010106KG0126)资助课题

Constrictive total least square improved algorithm in MIMO radars

QU Yi1,2, LIAO Gui-sheng1, LI Jun1, JIANG Hui1   

  1. 1. Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an 710071, China;
    2. Dept. of Communication, Engineering Inst. of the Armed Police, Xi'an 710086, China
  • Received:2007-09-19 Revised:2008-03-19 Online:2009-02-20 Published:2010-01-03

摘要: 针对多输入多输出MIMO雷达目标定位系统中基于最小二乘算法的AOA定位精度低的缺点,分析出造成这一缺点的原因是系数矩阵存在误差.进而利用系数矩阵误差存在相关性的特点,提出用约束总体最小二乘法进行目标定位,推导了定位均方误差公式.计算机仿真证明该方法比普通最小二乘法具有更好的定位性能.

Abstract: In MIMO(multi-input multi-output) radars,the precision of AOA(angle of arrival) position location through the least square algorithm is low.An analysis of this shortcoming is given.The analysis shows that the bad performance results from the fact that the coefficient matrix has errors.And a method based on the constrictive total least square algorithm,which exploits the correlation among coefficient matrix errors,is proposed.The mean-squareerror(MSE) of the estimated position based on this method is analyzed.Simulation results show that the performance of the proposed method is better than the least square one.

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