利用加权最小二乘方法对多基地雷达目标定位.证明重复使用发射站测量信息将导致误差协方差矩阵奇异.通过在误差协方差矩阵中加入一个小的修正量,能够实现目标定位.仿真的GDOP曲线表明了改进方法的有效性.

Weighted Least-square method is utilized in this paper to estimate the target position in a multistatic radar system.It is theoretically proved that the error covariance matrix is singular when using the same transmitter's measurement.In order to estimate the position accurately,a method based on modification of the covariance matrix is presented,and its effectiveness is shown by the contour GDOP maps of simulations.

TN958