三星对地面辐射源的高程修正定位算法与误差研究

Height Corrected Location Algorithm and Error Analysis for Emitter on Earth Using Three Satellites

提出了用最小二乘估计解算辐射源位置，在迭代过程中通过地理信息系统查询并不断修正目标高程，同时其定位误差进行了分析和仿真。结果表明，修正高程误差后可以改进目标高程定位精度，进而促进水平定位精度，水平定位精度的提高又会促进在高度上的定位，从而使整体的定位精度得到了改善。

The Least-square estimation method was presented, at the same time in the process of algorithm iteration the target height could be inquired in the geography information system and be corrected continuously and the localization error was analyzed and simulated. The result indicated that the corrected height error could improve the height precision, then improve the level precision, and the improved level precision would improve the height precision, then the integral location precision could be improved