| 基于抗差Kalman滤波的精密单点定位 |
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| 引用本文： | 聂建亮,张双成,徐永胜,张玉芳,王月莉.基于抗差Kalman滤波的精密单点定位[J].西安地质学院学报,2010(2):218-220. |
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| 作者姓名： | 聂建亮 张双成 徐永胜 张玉芳 王月莉 |
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| 作者单位： | [1]国家测绘局大地测量数据处理中心,陕西西安710054 [2]长安大学地质工程与测绘学院,陕西西安710054 [3]长安大学测绘新技术研究院,陕西西安710054 [4]国家测绘局第一航测遥感院,陕西西安710054 |
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| 基金项目： | 国家自然科学基金项目（40774001） |
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| 摘 要： | 当精密单点定位的观测值含有异常数据时,Kalman滤波的精度将会降低。采用抗差Kalman滤波方法能够有效抑制观测异常,提高滤波的精度和可靠性。运用武汉国际GPS服务跟踪站数据对该方法进行了验证。结果表明,抗差Kalman滤波的精度比Kalman滤波的精度有一定程度提高,说明抗差Kalman滤波能够有效抑制观测异常。
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| 关 键 词： | 精密单点定位 抗差Kalman滤波 等价权 |
Precise Point Positioning Based on Robust Kalman Filtering |
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| Authors: | NIE Jian-liang ZHANG Shuang-cheng XU Yong-sheng ZHANG Yu-fang WANG Yue-li |
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| Institution: | 1.Geodetic Data Processing Center,State Bureau of Surveying and Mapping,Xi＇an 710054,Shaanxi,China;2.School of Geological Engineering and Surveying,Chang＇an University,Xi＇an 710054,Shaanxi,China;3.Institute of New Surveying Research,Chang＇an University,Xi＇an 710054,Shaanxi,China;4.The First Institute of Photogrammetry and Remote Sensing,State Bureau of Surveying and Mapping,Xi＇an 710054,Shaanxi,China) |
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| Abstract: | If the outliers exist in the observations,the accuracy of Kalman filtering will be lower.Robust Kalman filtering,which can improve the precision and the reliability of Kalman filtering,is used to control the outliers.The data from the tracking station of International GPS service in Wuhan are computed to test the efficiency of Robust Kalman filtering.The results show that the precision of Robust Kalman filtering is better than Kalman filtering,and it can control efficiently outliers in the observations. |
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| Keywords: | precise point positioning Robust Kalman filtering equivalent weight |
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