Real-time kinematic positioning algorithm with GNSS and high-frequency accelerometer observations for broadband signals

doi:10.1088/1361-6501/ab5d87

	Real-time kinematic positioning algorithm with GNSS and high-frequency accelerometer observations for broadband signals
	Tu, Rui 1,2,3; Liu, Jinhai 2,3; Zhang, Rui 1,3; Fan, Lihong 1,3; Zhang, Pengfei 2,3; Han, Junqiang 1,3
刊名	MEASUREMENT SCIENCE AND TECHNOLOGY
	2020-03-01
卷号	31 期号:3 页码:9
关键词	real-time kinematic positioning broadband signals GNSS ambiguity resolution baseline error deformation monitoring
ISSN号	0957-0233
DOI	10.1088/1361-6501/ab5d87
英文摘要	Real-time kinematic (RTK) positioning technology is widely used for deformation monitoring, but the signals of high-frequency band such as velocity and acceleration are easily polluted due to the bad signal to noise ratio. In order to obtain high-precision and broadband signals for deformation monitoring, we propose an enhanced RTK positioning algorithm by adding high-frequency accelerometer observations and estimate the bias of the acceleration as an unknown parameter in real-time. In addition, a dataset was constructed based on an experiment and used for the validation of our approach. The experiment is operated on a platform and includes a dynamic Global Navigation Satellite System (GNSS) antenna, a low-cost micro-electro-mechanical system (MEMS)-type accelerometer and a slide rail. We conducted eight simulations by sliding the collocated GNSS antenna and MEMS from one point to the other point by manual operation to record 2D movements in horizontal components. A vernier caliper was also set up to estimate the reference displacement for comparison, the maximum sliding distance of the platform is restricted to about 0.5 m. Our validation analyses demonstrate that the enhanced RTK positioning algorithm can provide high-precision displacement, velocity, and acceleration signals in real-time. The average accuracies are 5.0 mm, 0.6 mm s(-1) and 1.0 mm s(-2) respectively. Furthermore, the high-resolution acceleration signal from the MEMS is helpful to improve the RTK ambiguity resolution because the R-ratio (the ratio of the second minimum to the minimum quadratic form of residuals) values achieved by the new approach are much larger than the standard RTK approach.
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 'Light of the west joint scholar'[Y507YR1203] ; Chinese Academy of Sciences (CAS) program of 'Frontier Science Research Project'[QYZDB-SSW-DQC028]
WOS关键词	HIGH-RATE GPS ; STRONG-MOTION RECORDS ; BASE-LINE CORRECTIONS ; EARTHQUAKE ; DISPLACEMENTS ; DEFORMATION ; INTEGRATION ; TAIWAN ; TILTS ; RTK
WOS研究方向	Engineering ; Instruments & Instrumentation
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000504995800001
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 'Light of the west joint scholar' ; Chinese Academy of Sciences (CAS) program of 'Light of the west joint scholar' ; Chinese Academy of Sciences (CAS) program of 'Frontier Science Research Project' ; Chinese Academy of Sciences (CAS) program of '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 'Light of the west joint scholar' ; Chinese Academy of Sciences (CAS) program of 'Light of the west joint scholar' ; Chinese Academy of Sciences (CAS) program of 'Frontier Science Research Project' ; Chinese Academy of Sciences (CAS) program of '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 'Light of the west joint scholar' ; Chinese Academy of Sciences (CAS) program of 'Light of the west joint scholar' ; Chinese Academy of Sciences (CAS) program of 'Frontier Science Research Project' ; Chinese Academy of Sciences (CAS) program of '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 'Light of the west joint scholar' ; Chinese Academy of Sciences (CAS) program of 'Light of the west joint scholar' ; Chinese Academy of Sciences (CAS) program of 'Frontier Science Research Project' ; Chinese Academy of Sciences (CAS) program of 'Frontier Science Research Project'
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/9687]
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, Key Lab Precis Nav Positioning & Timing Technol, Xian 710600, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Yu Quan Rd, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Shu Yuan Rd, Xian 70600, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Tu, Rui,Liu, Jinhai,Zhang, Rui,et al. Real-time kinematic positioning algorithm with GNSS and high-frequency accelerometer observations for broadband signals[J]. MEASUREMENT SCIENCE AND TECHNOLOGY,2020,31(3):9.
APA	Tu, Rui,Liu, Jinhai,Zhang, Rui,Fan, Lihong,Zhang, Pengfei,&Han, Junqiang.(2020).Real-time kinematic positioning algorithm with GNSS and high-frequency accelerometer observations for broadband signals.MEASUREMENT SCIENCE AND TECHNOLOGY,31(3),9.
MLA	Tu, Rui,et al."Real-time kinematic positioning algorithm with GNSS and high-frequency accelerometer observations for broadband signals".MEASUREMENT SCIENCE AND TECHNOLOGY 31.3(2020):9.