全球定位系统2016，Vol.41Issue(5)：51-55,5.DOI:10.13442/j.gnss.1008-9268.2016.05.010
北斗GEO卫星多径误差的分析与估计
The Analysis and Estimation of BeiDou GEO Satellite Multipath Error
贾珊 1肖志斌 1唐小妹 1王飞雪1
作者信息
- 1. 国防科学技术大学 电子科学与工程学院，长沙 410073
- 折叠
摘要
Abstract
BeiDou navigation satellite system consists of 5 satellites in Geostationary Or-bit (GEO),5 satellites in Inclined Geosynchronous Orbit (IGSO)and 4 satellites in Median earth orbit (MEO).GEO satellites are relative static with earth,so the GEO multipath can-not be eliminated by a long time observation.There are many analysis about the characters of the GEO multipath.For example,the cycle of the GEO multipath is one sidereal day,which is consistent with the orbit period.It is also showed that the cross-correlation coefficients be-tween the low-frequency components of two consecutive days are larger than 0.7.There come up with an idea,make a use of the relationship between the GEO multipath and carrier to noise ratio,propose a new estimate algorithm of the GEO multipath.The experimental results show that the estimation error is less than 0.5 percent.关键词
GEO卫星多径误差/载噪比/多项式拟合Key words
GEO multipath error/carrier to noise ratio/polynomial分类
天文与地球科学引用本文复制引用
贾珊,肖志斌,唐小妹,王飞雪..北斗GEO卫星多径误差的分析与估计[J].全球定位系统,2016,41(5):51-55,5.
