摘要
在单点定位中,卫星星历误差对解算结果影响较大。文中介绍普通单点定位及精密单点定位的数学模型,通过广播星历及精密星历数据的解算,分析星历精度对单点定位的影响。计算结果表明,使用超快星历代替最终精密进行精密单点定位是可行的。
Ephemeris of GPS satellite is one of the main factors that affects on the accuracy of single point positioning.This paper introduces the mathematical models of common single-point positioning and precise point positioning.The accuracy of the point positioning and the precise positioning with the broadcast ephemeris and the precise ephemeris are analyzed by using actual data.The results show the feasibility of using ultra-precision ephemeris instead of the final ephemeris to achieve the requirements of preci...
出处
《测绘工程》
CSCD
2010年第3期17-19,23,共4页
Engineering of Surveying and Mapping
基金
国家自然科学基金资助项目(40604001)
