摘要
利用2016年6月17日~7月18日期间北斗卫星导航系统IGSO-6卫星相关数据,针对IGSO-6卫星的单星服务性能和对系统的服务性能影响以及新姿态控制模式对轨道确定的影响三个方面进行分析评估。分析结果表明,IGSO-6卫星空间信号用户测距误差为1.85m,卫星钟天稳定度为10-14量级,准确度为10-11量级,天漂移率接近10-13量级;新卫星的加入提升了系统服务性能,不同区域提升程度不同,PDOP最大提升20%左右;新姿态控制模式有助于改善地影期卫星精密轨道确定。
In this paper,we analyze the single-satellite service performance,the influence of system performance when IGSO-6 joined and the influence of orbit determination of IGSO-6 satellite which firstly applies the new attitude control mode with some data between June 17,2016 and July 18,2016.The results show that the signal- in-space user range error is 1.85m;the daily stability of satellite clock is in 10-14 level;the clock accuracy is in 10-11 level and clock drift is near 10-13 level.System performance is improved differently in different area.PDOP is improved by 20% to the greatest extent. The new attitude control mode is beneficial to improve the accuracy of orbit determination when satellite is in earth eclipse.
出处
《海洋测绘》
CSCD
2017年第4期51-54,58,共5页
Hydrographic Surveying and Charting
