The solutions of navigation observation equations for CAPS

	The solutions of navigation observation equations for CAPS
	Shi HuLi; Pei Jun
刊名	SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
	2009-03-01
卷号	52 期号:3 页码:434-444
关键词	CAPS navigation and positioning observation equation
英文摘要	Chinese scientists invent the navigation and positioning system based on commercial communications satellites and develop them successfully into China Area Positioning System (CAPS). In principle, this system is different from the GPS broadcasting satellite navigation class, where the propagation epoch of original navigation signals for pseudo-range measurement is from a ground master control station rather than from satellite transponders. This paper addresses the establishment of the three observation equation models for the navigation and positioning system based on communications satellites, and expresses them identically to operator equations and optimized models. Furthermore, both algorithms of the linear solution for the observable characteristic equation and the least-squares solution for the condition number more than 4 are discussed, with several methods for the exact solution, such as improving the behavior of coefficient matrices, right estimation for the weighted right hand side and selection of iteration forms of solutions, and the influence of the condition number on improving navigation and positioning accuracy is also analyzed carefully. Hopefully, all the works would be contributive to further development of the navigation and positioning system based on communications satellites, and be potentially valuable to other satellite navigation and positioning systems.
收录类别	SCI
语种	英语
WOS记录号	WOS:000264106800016
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/7589]
专题	国家天文台_空间科学研究部
作者单位	Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Shi HuLi,Pei Jun. The solutions of navigation observation equations for CAPS[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2009,52(3):434-444.
APA	Shi HuLi,&Pei Jun.(2009).The solutions of navigation observation equations for CAPS.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,52(3),434-444.
MLA	Shi HuLi,et al."The solutions of navigation observation equations for CAPS".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 52.3(2009):434-444.