| ???GPS?????????????????????о? |
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| 引用本文： | 赵自强,刘志平.???GPS?????????????????????о?[J].大地测量与地球动力学,2013,33(1):128-132. |
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| 作者姓名： | 赵自强 刘志平 |
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| 作者单位： | 中国矿业大学国土环境与灾害监测国家测绘地理信息局重点实验室,徐州,221116 |
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| 基金项目： | 中央高校基本科研业务费专项基金(2010QNA20);江苏高校优势学科建设工程资助项目(SZBF2011-6-B35);国家自然科学基金青年项目(41204011) |
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| 摘 要： | ?????GPS????????????????о?????????????????????????????????÷???????????仮???????????????????????????????????????????????Chebyshev????????÷?????????????????о????????????????????????????Ч??????????????????
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| 关 键 词： | GPS ???????? ??????? ?????? ?????? |
IMPROVED STANDARDIZATION METHOD BASED ON CONCAVE-CONVEX FEATURES OF GPS ORBITS |
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| Zhao Ziqiang and Liu Zhiping.IMPROVED STANDARDIZATION METHOD BASED ON CONCAVE-CONVEX FEATURES OF GPS ORBITS[J].Journal of Geodesy and Geodynamics,2013,33(1):128-132. |
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| Authors: | Zhao Ziqiang and Liu Zhiping |
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| Institution: | Zhao Ziqiang and Liu Zhiping(NASG Key Laboratory of Land Environment and Disaster Monitoring,CUMT,Xuzhou 221116) |
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| Abstract: | Through analyzing and investigating the concave convex features of dynamic GPS orbits, the improved standardization method based on Chebyshev polynomial fitting is presented. The novel method effectively improves fitting interval division, optimal order determination and weighted fitting coefficients calculation. Finally, a case is studied from precise orbits of 32 GPS satellites using existing methods and the novel method respectively and results show that the presented method is superior to the traditional methods in efficiency and accuracy. |
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| Keywords: | GPS orbits standardization concave convex interval weighted fitting optimal order |
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