| GPS广播星历参数拟合算法 |
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| 引用本文： | 崔先强,焦文海,贾小林,尹豫疆.GPS广播星历参数拟合算法[J].测绘学院学报,2004,21(4):244-246. |
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| 作者姓名： | 崔先强 焦文海 贾小林 尹豫疆 |
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| 作者单位： | [1]西安测绘研究所，陕西西安710054 [2]乌鲁木齐市仓房沟路89号，新疆乌鲁木齐830006 |
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| 基金项目： | 国家863青年创新基金项目(2002AA717011)，国家自然科学基金项目(40274002) |
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| 摘 要： | 介绍了GPS广播星历参数的最小二乘估计方法。推导了相应的计算公式。计算结果表明。文中给出的公式是正确的，其拟合精度以用户距离误差(URE)示时，对预报轨道的损失小于1cm。
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| 关 键 词： | GPS 用户距离误差 广播星历参数 最小二乘估计 |
The Fitting Algorithm of GPS Broadcast Ephemeris Parameters |
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| CUI Xian-qiang,JIAO Wen-hai,JIA Xiao-lin,YIN Yu-jiang.The Fitting Algorithm of GPS Broadcast Ephemeris Parameters[J].Journal of Institute of Surveying and Mapping,2004,21(4):244-246. |
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| Authors: | CUI Xian-qiang JIAO Wen-hai JIA Xiao-lin YIN Yu-jiang |
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| Institution: | CUI Xian-qiang~1,JIAO Wen-hai~1,JIA Xiao-lin~1,YIN Yu-jiang~2 |
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| Abstract: | This paper introduces the least square algorithm used to fit the GPS broadcast ephemeris parameters, and derivates the relevant calculation formulas. Test results show that the formulas and algorithm are correct, and the loss of the fitting precision denoted by URE is less than one meter. |
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| Keywords: | global positioning system user ranging error broadcast ephemeris parameters the least square estimate |
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