Data screening for kinematic orbit determination of LEOs

Baomin Han; Xiuying Zhu; Guoqing Qu; Lintao Liu

doi:10.1117/12.658523

4 January 2006 Data screening for kinematic orbit determination of LEOs

Baomin Han, Xiuying Zhu, Guoqing Qu, Lintao Liu

Proceedings Volume 5985, International Conference on Space Information Technology; 598553 (2006) https://doi.org/10.1117/12.658523
Event: International Conference on Space information Technology, 2005, Wuhan, China

Abstract

The orbit determination (OD) accuracy of kinematic and reduced-dynamic method based on the spaceborne GPS data is strongly dependent on the quality and continuity of GPS observations, and the screening of the Low-Earth-Orbiter (LEO) GPS observations is substantially important. In this paper, an elaborate pre-screening procedure of zero-differenced spaceborne GPS observations was developed. This new efficient data-screening algorithm consists of two steps: in the first step, the "majority voting" method is used to locate the gross errors in zero-differenced GPS data; in the second step, the observation marked as gross error is corrected using the "Quasi-Accurate Detection of gross errors (QUAD)" method. In this step, an iterative least-square adjustment procedure is used to obtain residuals which are screened to detect bad observations thoroughly. For illustration of the feasibility and efficiency of the new algorithm, the processing of a numerical example of CHAMP satellite is presented in this paper.

Citation Download Citation

Baomin Han, Xiuying Zhu, Guoqing Qu, and Lintao Liu "Data screening for kinematic orbit determination of LEOs", Proc. SPIE 5985, International Conference on Space Information Technology, 598553 (4 January 2006); https://doi.org/10.1117/12.658523

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KEYWORDS

Global Positioning System

Receivers

Clocks

Satellites

Kinematics

Error analysis

Computer simulations

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