Robust estimation of systematic errors of satellite laser range |
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| Authors: | Y Yang M K Cheng C K Shum B D Tapley |
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| Institution: | (1) Xian Research Institute of Surveying and Mapping, No. 1 Mid-Yanta Road, 710054 Xian, PRC e-mail: yuanxi@pub-online.sn.cn; Tel.: 86 29 553 35 03; Fax: 86 29 552 53 10, XX;(2) Center for Space Research, The University of Texas at Austin, Austin, TX 78759-5321, USA, US;(3) Department of Civil and Environmental Engineering and Geodetic Science, Ohio University, OH 43210-1275, USA, US |
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| Abstract: | Methods for analyzing laser-ranging residuals to estimate station-dependent systematic errors and to eliminate outliers in
satellite laser ranges are discussed. A robust estimator based on an M-estimation principle is introduced. A practical calculation
procedure which provides a robust criterion with high breakdown point and produces robust initial residuals for following
iterative robust estimation is presented. Comparison of the results from the least-squares method with those of the robust
method shows that the results of the station systematic errors from the robust estimator are more reliable.
Received: 18 March 1997 / Accepted: 17 March 1999 |
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| Keywords: | , Robust fitting,Systematic errors,SLR |
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