Orbit determination and prediction accuracy analysis for a regional tracking network

	Orbit determination and prediction accuracy analysis for a regional tracking network
	Zhou ShanShi1,2,3 ; Hu XiaoGong1 ; Wu Bin1
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2010-06-01
卷号	53 期号:6 页码:1130-1138
关键词	orbit determination and prediction regional tracking network URE
英文摘要	China's COMPASS satellite navigation system relies on a regional tracking network to provide navigation services. Limited by its geographic border, the regional network is able to cover only 30% of the medium-earth-orbits (MEO). Accuracy of determined and predicted orbits is not able to satisfy system requirements if the tracking data processing strategy for global tracking network processing is used for the regional network. Two major error sources for orbital prediction are accuracy of initial orbital elements and dynamical modeling. To achieve better prediction accuracy, we propose a two-step orbit determination and prediction strategy. For step 1, only solar radiation pressure (SRP) parameters are estimated along with the orbital elements and other parameters; for step 2, all parameters are estimated but the SRP parameters are tightly constrained to their step 1 estimates. Experimenting with data from a regional GPS network, we conclude for orbital prediction using the proposed two-step strategy, the average user range error (URE) for 24-h prediction arcs is better than 0.6 m.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
收录类别	SCI ; ISTP
语种	英语
WOS记录号	WOS:000278695200024
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/26363]
专题	上海天文台_天文地球动力学研究中心
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Res Ctr GNSS, Wuhan 430079, Peoples R China
推荐引用方式 GB/T 7714	Zhou ShanShi,Hu XiaoGong,Wu Bin. Orbit determination and prediction accuracy analysis for a regional tracking network[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2010,53(6):1130-1138.
APA	Zhou ShanShi,Hu XiaoGong,&Wu Bin.(2010).Orbit determination and prediction accuracy analysis for a regional tracking network.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,53(6),1130-1138.
MLA	Zhou ShanShi,et al."Orbit determination and prediction accuracy analysis for a regional tracking network".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 53.6(2010):1130-1138.