| 不同星历误差对静态单点定位精度的影响与分析 |
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| 引用本文： | 李勇军,丁士俊.不同星历误差对静态单点定位精度的影响与分析[J].测绘工程,2010,19(3):17-19,23. |
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| 作者姓名： | 李勇军 丁士俊 |
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| 作者单位： | 武汉大学,测绘学院,湖北,武汉,430079;武汉大学,测绘学院,湖北,武汉,430079 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 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。
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| 关 键 词： | GPS 卫星星历 单点定位 精度分析 |
Accuracy analysis of the effect of GPS satellite ephemeris to static point positioning |
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| LI Yong-jun,DING Shi-jun.Accuracy analysis of the effect of GPS satellite ephemeris to static point positioning[J].Engineering of Surveying and Mapping,2010,19(3):17-19,23. |
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| Authors: | LI Yong-jun DING Shi-jun |
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| Institution: | LI Yong-jun; DING Shi-jun(School of Geodesy and Geomatics; Wuhan University; Wuhan 430079; China); |
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| Abstract: | 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... |
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| Keywords: | GPS |
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