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5G assisted GNSS precise point positioning ambiguity resolution

文献类型：期刊论文

作者Li, Fangxin1,2; Tu, Rui1,2,3; Zhang, Pengfei1,2; Zhang, Rui1,2; Fan, Lihong1,2; Wang, Siyao1,2; Lu, Xiaochun1,2
刊名JOURNAL OF GEODESY
出版日期2024-05-01
卷号98期号:5页码:13
关键词5G Global navigation satellite system Precise point positioning Uncalibrated phase delay Ambiguity resolution Convergence time
ISSN号0949-7714
DOI10.1007/s00190-024-01850-5
英文摘要This study proposes a model using 5G time-of-arrival data to assist global navigation satellite system precise point positioning ambiguity resolution. Specifically, the model addresses the problem of PPP requiring a long convergence time in partially satellite-occluded GNSS environments, such as urban canyons. First, we apply the ionosphere-free PPP model to estimate uncalibrated phase delays. Next, we combine real 5G data with GNSS data to determine whether introducing 5G observations will decrease the convergence time of the PPP solution. Experimental results reveal that the 5G-assisted PPP model can effectively improve the convergence efficiency of the float solution, lower the fixed time, and achieve greater positional reliability. Notably, the combination of GPS, BDS, and 5G with a sampling interval of 1 s obtains a fixed solution in an average of 1.12 min. Moreover, 5G-assisted GNSS positioning effectively compensates for partial satellite occlusion, optimizes the PDOP value, and speeds up ambiguity fixing. The introduction of three and more 5G base stations helps to obtain fixed solutions within 9 min when it is difficult to obtain fixed solutions relying only on GNSS. Our findings have important implications for improving the widespread applicability and effectiveness of satellite-based navigation systems in light of increasing urbanization and the rise of signal-occluding environments.
WOS关键词GPS ; PPP
资助项目Innovative Research Group Project of the National Natural Science Foundation of China[41974032] ; Innovative Research Group Project of the National Natural Science Foundation of China[42274019] ; National Natural Science Foundation of China
WOS研究方向Geochemistry & Geophysics ; Remote Sensing
语种英语
WOS记录号WOS:001219648000003
出版者SPRINGER
资助机构Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://210.72.145.45/handle/361003/14617]  
专题国家授时中心_导航与通信研究室
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, Natl Time Serv Ctr, Shu Yuan Rd, Xian 710600, Peoples R China
3.Shandong Univ Sci & Technol, Coll Geodesy & Geomat, Qian Wan Rd, Qingdao 266590, Peoples R China
推荐引用方式
GB/T 7714		 Li, Fangxin,Tu, Rui,Zhang, Pengfei,et al. 5G assisted GNSS precise point positioning ambiguity resolution[J]. JOURNAL OF GEODESY,2024,98(5):13.
APA Li, Fangxin.,Tu, Rui.,Zhang, Pengfei.,Zhang, Rui.,Fan, Lihong.,...&Lu, Xiaochun.(2024).5G assisted GNSS precise point positioning ambiguity resolution.JOURNAL OF GEODESY,98(5),13.
MLA Li, Fangxin,et al."5G assisted GNSS precise point positioning ambiguity resolution".JOURNAL OF GEODESY 98.5(2024):13.

入库方式： OAI收割

来源：国家授时中心

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