GPS实时精密星历确定

本文基于美国Gamit软件研究的基础上，对于GPS实时精密轨道确定的方法进行了细致的研究，提出了在中国区域范围内有实用价值的区域定轨方法与方案。本文从GPS轨道的各种摄动力影响入手，对实时GPS轨道确定方法进行了阐述，同时讨论了在国家测绘局目前GPS跟踪站网的构架下，利用跟踪站网的多天数据并且引入随机参数进行GPS实时轨道确定的实例。

Method research on real-time precise ephemeris determination

Based on research of GAMIT software, the GPS orbit determination method were studied and discussed. This paper gives a valuable strategy for regional orbit determination in China. The algorithm and Perturbing forces model for the real-time GPS orbit determination is discussed in this paper. The real-time orbit predicted experiments by this algorithm under SBSM (State Bureau of Surveying and Mapping)GPS tracking network frame are introduced in this paper.