| 基于质心拉格朗日插值的GPS轨道标准化方法 |
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| 引用本文： | 赵辉,张书毕,张秋昭,卞和方.基于质心拉格朗日插值的GPS轨道标准化方法[J].全球定位系统,2011,36(2):15-18. |
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| 作者姓名： | 赵辉 张书毕 张秋昭 卞和方 |
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| 作者单位： | 中国矿业大学环境与测绘学院,江苏,徐州,221008;中国矿业大学,国土环境与灾害监测国家测绘局重点实验室,江苏,徐州,221008 |
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| 基金项目： | 江苏省普通高校研究生科研创新计划资助项目(CX10B_142Z) |
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| 摘 要： | GPS轨道标准化是GPS数据处理的重要步骤，采用质心拉格朗日插值方法进行GPS轨道标准化。将30min间隔的数据内插到15min，统计分析插值点位置、阶数及外椎对质心拉格朗日插值轨道标准化的影响。实验结果表明：质心拉格朗日插值30min间隔内插，10阶即可满足精度要求，运算效率高，过程稳定。
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| 关 键 词： | 轨道标准化 拉格朗日插值 Newton多项式插值 质心拉格朗日插值 |
Standardization of GPS Satellite Orbits based on Barycentric Lagrange Interpolation |
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| ZHAO Hui,ZHANG Shu-bi,ZHANG Qiu-zhao,BIAN He-fang.Standardization of GPS Satellite Orbits based on Barycentric Lagrange Interpolation[J].Gnss World of China,2011,36(2):15-18. |
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| Authors: | ZHAO Hui ZHANG Shu-bi ZHANG Qiu-zhao BIAN He-fang |
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| Institution: | ZHAO Hui1,2,ZHANG Shu-bi1,ZHANG Qiu-zhao1,BIAN He-fang1,2(1.School of Environment and Spatial Informatics,China University of Mining and Technology,Xuzhou Jiangsu 221008,China,2.Key Laboratory for Land Environment and Disaster Monitoring of SBSM,China) |
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| Abstract: | Standardization of GPS Satellite Orbits is an important step in GPS data processing.In order to analyze the influence of the location of interpolation points,bands and extrapolation,we calculate 30-minute intervals data to 15-minute intervals data using barycentric Lagrange interpolation.The result shows that the precision for standardization of GPS satellite orbits of barycentric Lagrange interpolation is available when it is 10 bands.It has higher operation efficiency and stability process. |
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| Keywords: | Orbits standardization Lagrange interpolation Newton polynomial interpolation barycentric Lagrange interpolation |
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