三维多站测向交叉定位算法及精度分析

Algorithm and Accuracy Analysis for 3D Direction-Finding Crossing Location in Multi-Stations

在多站的测向交叉定位中,常把三维问题分解成二维和一维分别解算,这种方法虽简单易行,但定位精度有待进一步的提高。文中详细推算了这种算法的误差模型;然后给出一种用泰勒级数法结合最小二乘的思想进行定位的方法,并通过仿真计算证明了这种泰勒级数法的定位性能要优于前者。

In 3D direction finding location of multi-station, LS algorithm is always used in getting the values in x-y plane, then the object＇s altitude is gained using theorem of the mean. This method is easy but the location accuracy needs been improved more. The error model of this algorithm is calculated in this paper. And an algorithm based on Taylor＇s series and LS ideology is discussed. Finally, the simulation results prove that the location accuracy of the Taylor＇s series is better than the former.