Modeling and initial assessment of the inter-frequency clock bias for COMPASS GEO satellites

	Modeling and initial assessment of the inter-frequency clock bias for COMPASS GEO satellites
	Li, Haojun 1,2,3; Chen, Yanling1,3 ; Wu, Bin1,3 ; Hu, Xiaogong1,3 ; He, Feng 1,4; Tang, Guifen 1,4; Gong, Xiuqiang1 ; Chen, Junping1,3
刊名	ADVANCES IN SPACE RESEARCH
	2013-06-15
卷号	51 期号:12 页码:2277-2284
关键词	Triple-frequency signals Precise Point Positioning Inter-frequency clock bias COMPASS system
英文摘要	The COMPASS system is a project established by China to develop an independent global satellite navigation system, which has five GEO (Geostationary Orbit) satellites and thirty Non-GEO satellites. An apparent inter-frequency clock bias (IFCB) for COMPASS GEO satellites is investigated using the real data. The bias also is modeled by the different models. Based on the 15 months (DOY 121, 2011-214, 2012) single-day-estimated results, the periodic variation of IFCBs of the COMPASS GEO satellite is studied using a harmonic analysis. The notable periods of 12 h and 8 h are noted. The harmonics-based models with different periods and different orders and quadratic function based model are used to describe the IFCB. The performances show that the 4-order harmonics-based model with the periods of 24, 12, 8 and 6 h is most optimal than others for describing the IFCB of COMPASS GEO satellite. Its amplitudes and phases estimated from a least square fit are used to study the features of the IFCB. The results show that the current amplitudes and phases do not present special features. Although the irregular amplitudes and phases of the model are disadvantageous for the long-term prediction of IFCB, it is obvious that the modeling IFCB can simple its service and a few of coefficients can replace the IFCB series. The performance of the model in short-term prediction IFCB is tested using the ten-day data (DOY 215-224, 2012). (C) 2013 COSPAR. Published by Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
研究领域[WOS]	Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
关键词[WOS]	NETWORK
收录类别	SCI
语种	英语
WOS记录号	WOS:000320686000010
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/18009]
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.Guilin Univ Technol, Guangxi Key Lab Spatial Informat & Geomat, Guilin 541004, Peoples R China 3.Shanghai Key Lab Space Nav & Posit Tech, Shanghai 200030, Peoples R China 4.Beijing Nav Ctr, Beijing 100094, Peoples R China
推荐引用方式 GB/T 7714	Li, Haojun,Chen, Yanling,Wu, Bin,et al. Modeling and initial assessment of the inter-frequency clock bias for COMPASS GEO satellites[J]. ADVANCES IN SPACE RESEARCH,2013,51(12):2277-2284.
APA	Li, Haojun.,Chen, Yanling.,Wu, Bin.,Hu, Xiaogong.,He, Feng.,...&Chen, Junping.(2013).Modeling and initial assessment of the inter-frequency clock bias for COMPASS GEO satellites.ADVANCES IN SPACE RESEARCH,51(12),2277-2284.
MLA	Li, Haojun,et al."Modeling and initial assessment of the inter-frequency clock bias for COMPASS GEO satellites".ADVANCES IN SPACE RESEARCH 51.12(2013):2277-2284.