An analysis of the wide area differential method of geostationary orbit satellites

NTSC-IR > 时间频率测量与控制研究室

	An analysis of the wide area differential method of geostationary orbit satellites
	Cai ChengLin; Li XiaoHui; Wu HaiTao
	2009
发表期刊	SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
ISSN	1672-1799
卷号	52 期号:2 页码:310-314
摘要	This work aims to obtain a wide area differential method for geostationary orbit (GEO) constellation. A comparison between the dilution of precision (DOP) of four-dimensional (4D) calculation including satellite clock errors and ephemeris errors and that of three-dimensional (3D) calculation only including ephemeris errors with the inverse positioning theory of GPS shows the conclusion that all the 3D PDOPs are greatly reduced. Based on this, a basic idea of correcting satellite clock errors and ephemeris errors apart is put forward, and moreover, a specific method of separation is proposed. Satellite clock errors are separated in a master station with time synchronization, and all the remaining pseudo-range errors after the satellite clock errors have been deducted are used to work out ephemeris corrections of all GEO satellites. By a comparative analysis of user positioning accuracy before and after differential, the wide area differential method is verified to be quite valid for GEO constellation.
部门归属	时间频率测量与控制研究室
关键词	Geostationary Orbitsatellite Dilution Of Precision Satellite Ephemeris
收录类别	SCI
语种	英语
WOS记录号	WOS:000262684700019
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/4726
专题	时间频率测量与控制研究室
推荐引用方式 GB/T 7714	Cai ChengLin,Li XiaoHui,Wu HaiTao. An analysis of the wide area differential method of geostationary orbit satellites[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2009,52(2):310-314.
APA	Cai ChengLin,Li XiaoHui,&Wu HaiTao.(2009).An analysis of the wide area differential method of geostationary orbit satellites.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,52(2),310-314.
MLA	Cai ChengLin,et al."An analysis of the wide area differential method of geostationary orbit satellites".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 52.2(2009):310-314.

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