Estimability analysis of differential inter-system biases and differential inter-frequency biases for dual-frequency GPS and BDS combined RTK

doi:10.1088/1361-6501/ab4844

CORC > 国家授时中心 > 中国科学院国家授时中心 > 守时理论与方法研究室

	Estimability analysis of differential inter-system biases and differential inter-frequency biases for dual-frequency GPS and BDS combined RTK
	Liu, Jinhai 1,3; Tu, Rui 1,2,3; Han, Junqiang 2,3; Zhang, Rui 2,3; Zhang, Pengfei 1,3; Fan, Lihong 2,3
刊名	MEASUREMENT SCIENCE AND TECHNOLOGY
	2020-02-01
卷号	31 期号:2 页码:18
关键词	BeiDou navigation satellite system differential inter-system bias Differential inter-frequency bias GPS
ISSN号	0957-0233
DOI	10.1088/1361-6501/ab4844
英文摘要	Inter-system biases (ISBs) and inter-frequency biases (IFBs) are critical for the data processing of multi-frequency and multi-constellation global navigation satellite systems (GNSS). Calibration of the ISB and IFB makes it possible to enhance the accuracy, integrity, and availability of multi-GNSS positioning, navigation, and timing. In this study, we investigate the magnitude and stability of the code and carrier phase differential intersystem biases (DISBs) between the GPS/BeiDou navigation satellite system (BDS) L1- B1/L2-B2 and differential inter-frequency biases (DIFBs) between L1-L2/B1- B2 using zero and short baseline data collected using both identical and different receiver types in realtime kinematic (RTK) positioning. We verify that the code and carrier phase DISBs of GPS/BDS L1-B1/L2-B2 and DIFBs of L1-L2/B1-B2 are both approximately constant on the timescale of a consecutive five-day observation period from a statistical perspective, and can thus be corrected by a priori DISB and DIFB, respectively. Moreover, the performance of the a priori model correction and real-time estimation strategies for the DISB and DIFB are compared. Both can precisely correct the DISB and DIFB and achieve significantly improved performance for multi-GNSS inter-system and inter-frequency combined RTK positioning compared to the classical intra-system and intra-frequency combined RTK approach. The DISB and DIFB using the a priori model correction and real-time estimation effectively improve the positioning model strength, thereby enabling superior performance for multi-GNSS positioning.
资助项目	National Natural Science Foundation of China[41674034] ; National Natural Science Foundation of China[41974032] ; National Natural Science Foundation of China[11903040] ; Chinese Academy of Sciences (CAS) programs of 'Pioneer Hundred Talents'[Y923YC1701] ; Frontier Science Research Project[QYZDB-SSW-DQC028]
WOS关键词	GALILEO ; MODEL ; SIGNALS ; BEIDOU ; QZSS
WOS研究方向	Engineering ; Instruments & Instrumentation
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000526712400001
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) programs of 'Pioneer Hundred Talents' ; Chinese Academy of Sciences (CAS) programs of 'Pioneer Hundred Talents' ; Frontier Science Research Project ; Frontier Science Research Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) programs of 'Pioneer Hundred Talents' ; Chinese Academy of Sciences (CAS) programs of 'Pioneer Hundred Talents' ; Frontier Science Research Project ; Frontier Science Research Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) programs of 'Pioneer Hundred Talents' ; Chinese Academy of Sciences (CAS) programs of 'Pioneer Hundred Talents' ; Frontier Science Research Project ; Frontier Science Research Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) programs of 'Pioneer Hundred Talents' ; Chinese Academy of Sciences (CAS) programs of 'Pioneer Hundred Talents' ; Frontier Science Research Project ; Frontier Science Research Project
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/9613]
专题	国家授时中心_守时理论与方法研究室
通讯作者	Tu, Rui
作者单位	1.Univ Chinese Acad Sci, Yu Quan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Precis Nav & Timing Technol, Shu Yuan Rd, Xian 710600, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Shu Yuan Rd, Xian 710600, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jinhai,Tu, Rui,Han, Junqiang,et al. Estimability analysis of differential inter-system biases and differential inter-frequency biases for dual-frequency GPS and BDS combined RTK[J]. MEASUREMENT SCIENCE AND TECHNOLOGY,2020,31(2):18.
APA	Liu, Jinhai,Tu, Rui,Han, Junqiang,Zhang, Rui,Zhang, Pengfei,&Fan, Lihong.(2020).Estimability analysis of differential inter-system biases and differential inter-frequency biases for dual-frequency GPS and BDS combined RTK.MEASUREMENT SCIENCE AND TECHNOLOGY,31(2),18.
MLA	Liu, Jinhai,et al."Estimability analysis of differential inter-system biases and differential inter-frequency biases for dual-frequency GPS and BDS combined RTK".MEASUREMENT SCIENCE AND TECHNOLOGY 31.2(2020):18.