CHAMP orbit determination with GPS phase-connected precise point positioning

被引：0

作者：

Bisnath, SB ^{[1
]}

Langley, RB ^{[1
]}

机构：

[1] Univ New Brunswick, Geodet Res Lab, Dept Geodesy & Geomat Engn, Fredericton, NB, Canada

来源：

FIRST CHAMP MISSION RESULTS FOR GRAVITY, MAGNETIC AND ATMOSPHERIC STUDIES | 2003年

关键词：

orbit determination; GPS; point positioning;

D O I：

暂无

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A completely geometric approach for precise orbit determination (POD) of low earth orbiters (LEOs) is presented, which does not rely on dynamic models, but only data from a GPS receiver onboard a LEO and the International GPS Service (IGS) GPS orbit and clock products. Initial processing of CHAMP receiver data indicated measurement anomalies requiring additional pre-processing. The exising of outliers becomes a significant concern in the processing, given that this results in significant gaps in datasets. Intermediate processing results indicate that orbit comparison precision approaching 30 em r.m.s. in each position component is attainable. However, these results are severely impacted by the near ubiquitous data gaps in the preprocessed measurements. However, initial analysis of recent data indicates quality datasets capable of providing near-decimetre-level precision.

引用

页码：59 / 64

页数：6