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| 引用本文： | 胡守超,伍吉仓,孙亚峰.????GPS????????????????????[J].大地测量与地球动力学,2009,29(3):95-99. |
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| 作者姓名： | 胡守超 伍吉仓 孙亚峰 |
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| 作者单位： | 同济大学测量与国土信息工程系,上海,200092 |
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| 摘 要： | ????(Stacking)??????????????PCA????Karhunen??Loeve???(KLE)??3?????????????????????????12??GPS????????5?????????????С?????????3???????????Ч???????????????????д????????????????????????????????????????÷?Χ???в????
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| 关 键 词： | GPS??????? ??????? ??? ?????????? Karhunen-Loeve??? |
COMPARISON AMONG THREE SPATIOTEMPORAL FILTERING METHODS FOR REGIONAL GPS NETWORKS ANALYSIS |
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| Hu Shouchao,Wu Jicang,Sun Yafeng.COMPARISON AMONG THREE SPATIOTEMPORAL FILTERING METHODS FOR REGIONAL GPS NETWORKS ANALYSIS[J].Journal of Geodesy and Geodynamics,2009,29(3):95-99. |
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| Authors: | Hu Shouchao Wu Jicang Sun Yafeng |
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| Institution: | Department of Surveying and Geo-Informatics;Tongji University;Shanghai 200092 |
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| Abstract: | Three regional filtering methods:stacking,principal component analysis and Karhunen-Loeve expansion,were respectively applied to analyze the time series of daily coordinate for five years from twelve stations of Southern California integrated GPS network.The results indicate that the common mode errors can be extracted with all three methods and thereby the precision of coordinates will be improved remarkably,but they have respective advantages and disadvantages. |
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| Keywords: | GPS time series common mode errors filtering principal component analysis Karhunen-Loeve expansion |
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