多站测向定位中递归加权最小二乘法的技术分析

最小二乘法常用于多站测向定位，文章在现有最小二乘法模型基础上，推导了一种递归加权的最小二乘法模型，并与非递归的最小二乘法模型在运算量上进行了比较，发现在测向站较多的情况下（多于6站），递归的最小二乘法模型比非递归的最小二乘法模型在运算量上要小，最后绘出了不同数量测向站的GDOP图，发现在一定误差条件下，随着测向站的增加，定位精度的提高并不是很明显。

Technique Analysis on Recursion Weighted Lest Square Algorithm Used in Direction-Finding Location in Multi-Stations

The lest square(LS) algorithm is usually used in direction-finding location in multi-stations.In this paper,based on the existing LS algorithm model,a recursion weighted LS algorithm model is deduced.Compared with the non-recursion LS algorithm model,the recursion LS algorithm model has less calculation when the direction-finding station is more than 6.The figure of GDOP of different number of stations is drawn at last.Under certain condition,we can conclude that the location precision can not improve much ...