摘要
星载GPS对低轨卫星定轨受多种误差源的影响。对CHAMP卫星星载GPS数据的误差源进行了分析,并将定轨结果与德国地球科学中心提供的精密卫星轨道数据相比较,对定轨精度进行了详细分析,为CHAMP卫星精密定轨提供了误差分析基础。
A variety of error sources have great impacts on the precision of satellite orbit determination when GPS data onboard LEO (low earth orbiter) are used. The error sources of GPS data onboard CHAMP are analyzed, and the precise orbit determination results are compared with the precise scientific orbit products released by Germany GFZ. The experimental results show an error analysis basic for precise orbit determiniation of CHAMP satellite.
出处
《海洋测绘》
2010年第3期13-15,19,共4页
Hydrographic Surveying and Charting
基金
中国科学院动力大地测量学重点实验室基金(L09-01)
国家自然科学基金(40974004)
国家863项目(2009AA121405)
海岛(礁)测绘技术国家测绘局重点实验室基金(2009B15)
关键词
星载GPS数据
GPS误差源
精密定轨
CHAMP
satellite-borne GPS data
error sources of GPS data
precise orbit determination
CHAMP