GNSS Surface Occlusion Model Analysis Based on Different Fitting Functions

doi:10.1061/JSUED2.SUENG-1286

NTSC-IR > 导航与通信研究室

	GNSS Surface Occlusion Model Analysis Based on Different Fitting Functions
	Han, Junqiang; Tu, Rui; Wang, Siyao; Lu, Xiaochun
	2023-08-01
发表期刊	JOURNAL OF SURVEYING ENGINEERING
ISSN	0733-9453
卷号	149 期号:3 页码:7
摘要	Accuracy and reliability are determining factors when selecting where to place a global navigation satellite system (GNSS) receiver for landslide monitoring and early warning in real time. Previous studies have revealed that surface occlusion models (SOMs) are beneficial to reduce the multipath error of satellite observation when the satellite line of sight is near the ground and improve the accuracy and reliability of GNSS monitoring. This paper investigates fitting functions to determine appropriate SOMs for GNSS stations located in different spatial environments. Based on their similarity to terrain patterns, Gaussian, Fourier, and sum of sine functions were chosen to build SOMs for the rover sites with different occlusions; the performance of fitting accuracy and application on the positioning were analyzed. The results indicate that the three functions present a similar performance considering the goodness of fit, but the Fourier and sum of sine functions can significantly improve the efficacy of SOMs and enhance performance in positioning for landslide monitoring. Therefore, these two functions can effectively support accurate and reliable GNSS landslide monitoring in real time.
关键词	Global navigation satellite system (GNSS) Surface occlusion models (SOMs) Fitting Landslide monitoring
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar" ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar" ; 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) program of "Western Youth Scholar" ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar" ; 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) program of "Western Youth Scholar" ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar" ; 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) program of "Western Youth Scholar" ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar" ; Frontier Science Research Project ; Frontier Science Research Project
DOI	10.1061/JSUED2.SUENG-1286
关键词[WOS]	GPS
语种	英语
资助项目	National Natural Science Foundation of China[42204043] ; National Natural Science Foundation of China[41974032] ; National Natural Science Foundation of China[12203060] ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar"[Y712YR4701] ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar"[Y916YRa701] ; Frontier Science Research Project[QYZDB-SSW-DQC028]
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar" ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar" ; 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) program of "Western Youth Scholar" ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar" ; 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) program of "Western Youth Scholar" ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar" ; 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) program of "Western Youth Scholar" ; Chinese Academy of Sciences (CAS) program of "Western Youth Scholar" ; Frontier Science Research Project ; Frontier Science Research Project
WOS研究方向	Engineering
WOS类目	Engineering, Civil
WOS记录号	WOS:001010997500005
出版者	ASCE-AMER SOC CIVIL ENGINEERS
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/14204
专题	导航与通信研究室
通讯作者	Tu, Rui
作者单位	Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China
推荐引用方式 GB/T 7714	Han, Junqiang,Tu, Rui,Wang, Siyao,et al. GNSS Surface Occlusion Model Analysis Based on Different Fitting Functions[J]. JOURNAL OF SURVEYING ENGINEERING,2023,149(3):7.
APA	Han, Junqiang,Tu, Rui,Wang, Siyao,&Lu, Xiaochun.(2023).GNSS Surface Occlusion Model Analysis Based on Different Fitting Functions.JOURNAL OF SURVEYING ENGINEERING,149(3),7.
MLA	Han, Junqiang,et al."GNSS Surface Occlusion Model Analysis Based on Different Fitting Functions".JOURNAL OF SURVEYING ENGINEERING 149.3(2023):7.