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。
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 pro- posed. The mean-squareerror （MSE） of the estimated position based on this method is analyzed. Simulation re- sults show that the performance of the proposed method is better than the least square one. Keywords.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2009年第2期319-322,共4页
Systems Engineering and Electronics
基金
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
