Estimation and Analysis of BDS-3 Differential Code Biases from MGEX Observations

doi:10.3390/rs12010068

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	Estimation and Analysis of BDS-3 Differential Code Biases from MGEX Observations
	Wang, Qisheng 2,3; Jin, Shuanggen 3,4; Yuan, Liangliang 4; Hu, Youjian 2; Chen, Jie 1; Guo, Jiabin 3
刊名	REMOTE SENSING
	2020
卷号	12 期号:1 页码:13
关键词	differential code bias (DCB) ionospheric modeling Global Navigation Satellite System (GNSS) BDS-3
DOI	10.3390/rs12010068
英文摘要	The third generation of China's BeiDou Navigation Satellite System (BDS-3) began to provide global services on 27 December, 2018. Differential code bias (DCB) is one of the errors in precise BDS positioning and ionospheric modeling, but the impacts on BDS-2 satellites and receiver DCB are unknown after joining BDS-3 observations. In this paper, the BDS-3 DCBs are estimated and analyzed using the Multi-Global Navigation Satellite System (GNSS) Experiment (MGEX) observations during the period of day of year (DOY) 002-031, 2019. The results indicate that the estimated BDS-3 DCBs have a good agreement with the products provided by the Chinese Academy of Sciences (CAS) and Deutsche Zentrum fur Luft- und Raumfahrt (DLR). The differences between our results and the other two products are within +/- 0.2 ns, with Standard Deviations (STDs) of mostly less than 0.2 ns. Furthermore, the effects on satellite and receiver DCB after adding BDS-3 observations are analyzed by BDS-2 + BDS-3 and BDS-2-only solutions. For BDS-2 satellite DCB, the values of effect are close to 0, and the effect on stability of DCB is very small. In terms of receiver DCB, the value of effect on each station is related to the receiver type, but their mean value is also close to 0, and the stability of receiver DCB is better when BDS-3 observations are added. Therefore, there is no evident systematic bias between BDS-2 and BDS-2 + BDS-3 DCB.
资助项目	National Natural Science Foundation of China-German Science Foundation (NSFC-DFG) Project[41761134092] ; Startup Foundation for Introducing Talent of NUIST[2243141801036] ; Jiangsu Province Distinguished Professor Project[R2018T20]
WOS关键词	MULTI-GNSS OBSERVATIONS ; NAVIGATION SYSTEM ; BEIDOU ; SATELLITE ; VARIABILITY ; IGS
WOS研究方向	Remote Sensing
语种	英语
出版者	MDPI
WOS记录号	WOS:000515391700068
资助机构	National Natural Science Foundation of China-German Science Foundation (NSFC-DFG) Project ; National Natural Science Foundation of China-German Science Foundation (NSFC-DFG) Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; National Natural Science Foundation of China-German Science Foundation (NSFC-DFG) Project ; National Natural Science Foundation of China-German Science Foundation (NSFC-DFG) Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; National Natural Science Foundation of China-German Science Foundation (NSFC-DFG) Project ; National Natural Science Foundation of China-German Science Foundation (NSFC-DFG) Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; National Natural Science Foundation of China-German Science Foundation (NSFC-DFG) Project ; National Natural Science Foundation of China-German Science Foundation (NSFC-DFG) Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/54569]
专题	中国科学院国家天文台
通讯作者	Jin, Shuanggen
作者单位	1.Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan 411105, Peoples R China 2.China Univ Geosci, Sch Geog & Informat Engn, Wuhan 430074, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Geomat Engn, Nanjing 210044, Peoples R China 4.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qisheng,Jin, Shuanggen,Yuan, Liangliang,et al. Estimation and Analysis of BDS-3 Differential Code Biases from MGEX Observations[J]. REMOTE SENSING,2020,12(1):13.
APA	Wang, Qisheng,Jin, Shuanggen,Yuan, Liangliang,Hu, Youjian,Chen, Jie,&Guo, Jiabin.(2020).Estimation and Analysis of BDS-3 Differential Code Biases from MGEX Observations.REMOTE SENSING,12(1),13.
MLA	Wang, Qisheng,et al."Estimation and Analysis of BDS-3 Differential Code Biases from MGEX Observations".REMOTE SENSING 12.1(2020):13.