| 单频GPS精密单点定位的逐次滤波法模型及其精度分析 |
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| 引用本文： | 许承权,吴文英,吴绍祖.单频GPS精密单点定位的逐次滤波法模型及其精度分析[J].测绘科学,2010,35(4):23-24,128. |
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| 作者姓名： | 许承权 吴文英 吴绍祖 |
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| 作者单位： | 闽江学院地理科学系,福州,350108;福建省地震局,福州,350003 |
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| 基金项目： | 福建省自然科学基金资助项目，福建省教育厅A类科技项目，福州市科技计划资助项目 |
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| 摘 要： | 单频GPS精密单点定位的逐次滤波法,将载波相位观测值在相邻历元间求差以消除电离层延迟误差的影响,并辅助伪距观测值进行高精度定位。本文详细分析该方法的随机模型和函数模型,讨论观测值先验方差的确定方法,包括指数函数经验模型、观测残差向量的开窗估计法等,并采用自编软件计算实测数据分析该模型的精度。
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| 关 键 词： | GPS GPS 精密单点定位 逐次滤波法 |
Carrier-based pseudorange filtering and it's application in single frequency precise point positioning |
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| XU Cheng-quan,WU Wen-ying,WU Shao-zu.Carrier-based pseudorange filtering and it's application in single frequency precise point positioning[J].Science of Surveying and Mapping,2010,35(4):23-24,128. |
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| Authors: | XU Cheng-quan WU Wen-ying WU Shao-zu |
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| Abstract: | The function model and statistic model of carrier-based pseudorange filtering was analyzed in this paper in detail.The Exponential empirical function and residual adaptive estimation were used to determine the variance.A testing example calculated by the software developed by the author was used to analyze the accuracy of the proposed model. |
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| Keywords: | GPS |
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