A virtual reference satellite differential method for relative correction of satellite ephemeris errors

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	A virtual reference satellite differential method for relative correction of satellite ephemeris errors
	Cai ChengLin ; Li XiaoHui ; Wu HaiTao
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2010
卷号	53 期号:12 页码:2300-2306
关键词	wide area differential method virtual reference satellite (VRS)
ISSN号	1674-7348
英文摘要	In order to solve the problems that the novel wide area differential method on the satellite clock and ephemeris relative correction (CERC) in the non-geostationary orbit satellite constellation, a virtual reference satellite (VRS) differential principle using relative correction of satellite ephemeris errors is proposed. It is referred to be as the VRS differential principle, and the elaboration is focused on the construction of pseudo-range errors of VRS. Through qualitative analysis, it can be found that the impact of the satellite's clock and ephemeris errors on positioning can basically be removed and the users' positioning errors are near zero. Through simulation analysis of the differential performance, it is verified that the differential method is universal in all kinds of satellite navigation systems with geostationary orbit (GEO) constellation, Medium orbit (MEO) constellation or hybrid orbit constellation, and it has insensitivity to abnormal aspects of a satellite ephemeris and clock. Moreover, the real time positioning accuracy of differential users can be maintained within several decimeters after the pseudo-range measurement noise is effectively weakened or eliminated.
收录类别	SCI
语种	英语
公开日期	2012-09-05
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/4738]
专题	国家授时中心_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. A virtual reference satellite differential method for relative correction of satellite ephemeris errors[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2010,53(12):2300-2306.
APA	Cai ChengLin,Li XiaoHui,&Wu HaiTao.(2010).A virtual reference satellite differential method for relative correction of satellite ephemeris errors.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,53(12),2300-2306.
MLA	Cai ChengLin,et al."A virtual reference satellite differential method for relative correction of satellite ephemeris errors".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 53.12(2010):2300-2306.