SNR-Dependent Environmental Model: Application in Real-Time GNSS Landslide Monitoring

doi:10.3390/s19225017

	SNR-Dependent Environmental Model: Application in Real-Time GNSS Landslide Monitoring
	Han, Junqiang 2,3; Tu, Rui 1,2,3; Zhang, Rui 2,3; Fan, Lihong 2,3; Zhang, Pengfei 2,3
刊名	SENSORS
	2019-11-01
卷号	19 期号:22 页码:13
关键词	GNSS SNR-dependent environment model landslide monitoring
DOI	10.3390/s19225017
英文摘要	The Global Navigation Satellite System (GNSS) is currently one of the important tools for landslide monitoring and early warning. However, the majority of GNSS devices are installed in mountainous areas and a variety of vegetation. These harsh environments lead to defective signals at high elevation angles, rendering real-time successive and reliable positioning results for monitoring difficult. In this study, an environmental model derived from signal-to-noise ratio (SNR) is proposed to enhance the precision and convergence time of positioning in harsh environments. A series of experiments are conducted on weighting and ambiguity-fixed models to evaluate performance. The results indicate that the proposed SNR-dependent environment model could lead to a significant improvement in precision and convergence time; with an obtained root mean squared result on the millimeter level, a convergence time of a few seconds, and utilization which could reach 100%, for continuous and reliable positioning results. These results indicate that the proposed SNR-dependent environment model enhances the performance of GNSS monitoring and early warning to provide continuous and reliable positioning results in real-time.
资助项目	program of National Key Research and Development Plan of China[2016YFB0501804] ; 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) program of "Pioneer Hundred Talents"[Y923YC1701] ; Chinese Academy of Sciences (CAS) program of "The Frontier Science Research Project"[QYZDB-SSW-DQC028]
WOS关键词	ATTITUDE DETERMINATION ; MULTIPATH MITIGATION ; GPS
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
语种	英语
出版者	MDPI
WOS记录号	WOS:000503381500195
资助机构	program of National Key Research and Development Plan of China ; program of National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) program of "Pioneer Hundred Talents" ; Chinese Academy of Sciences (CAS) program of "Pioneer Hundred Talents" ; Chinese Academy of Sciences (CAS) program of "The Frontier Science Research Project" ; Chinese Academy of Sciences (CAS) program of "The Frontier Science Research Project" ; program of National Key Research and Development Plan of China ; program of National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) program of "Pioneer Hundred Talents" ; Chinese Academy of Sciences (CAS) program of "Pioneer Hundred Talents" ; Chinese Academy of Sciences (CAS) program of "The Frontier Science Research Project" ; Chinese Academy of Sciences (CAS) program of "The Frontier Science Research Project" ; program of National Key Research and Development Plan of China ; program of National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) program of "Pioneer Hundred Talents" ; Chinese Academy of Sciences (CAS) program of "Pioneer Hundred Talents" ; Chinese Academy of Sciences (CAS) program of "The Frontier Science Research Project" ; Chinese Academy of Sciences (CAS) program of "The Frontier Science Research Project" ; program of National Key Research and Development Plan of China ; program of National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) program of "Pioneer Hundred Talents" ; Chinese Academy of Sciences (CAS) program of "Pioneer Hundred Talents" ; Chinese Academy of Sciences (CAS) program of "The Frontier Science Research Project" ; Chinese Academy of Sciences (CAS) program of "The Frontier Science Research Project"
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/9688]
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.Chinese Acad Sci, Coll Elect Elect & Commun Engn, Yu Quan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Time & Frequency Primary Stand, Xian 710600, Shaanxi, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Shu Yuan Rd, Xian 710600, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Han, Junqiang,Tu, Rui,Zhang, Rui,et al. SNR-Dependent Environmental Model: Application in Real-Time GNSS Landslide Monitoring[J]. SENSORS,2019,19(22):13.
APA	Han, Junqiang,Tu, Rui,Zhang, Rui,Fan, Lihong,&Zhang, Pengfei.(2019).SNR-Dependent Environmental Model: Application in Real-Time GNSS Landslide Monitoring.SENSORS,19(22),13.
MLA	Han, Junqiang,et al."SNR-Dependent Environmental Model: Application in Real-Time GNSS Landslide Monitoring".SENSORS 19.22(2019):13.