Adjustment of Transceiver Lever Arm Offset and Sound Speed Bias for GNSS-Acoustic Positioning

doi:10.3390/rs11131606

	Adjustment of Transceiver Lever Arm Offset and Sound Speed Bias for GNSS-Acoustic Positioning
	Chen, Guanxu 1,2; Liu, Yang 2; Liu, Yanxiong 1,2; Tian, Ziwen 2; Li, Menghao 2
刊名	REMOTE SENSING
	2019-07
卷号	11 期号:13
关键词	GNSS-A lever arm offset sound velocity bias sample search
ISSN号	2072-4292
DOI	10.3390/rs11131606
英文摘要	Global Navigation Satellite System-Acoustic (GNSS-A) positioning is the main technique for seafloor geodetic positioning. A transceiver lever arm offset and sound velocity bias in seawater are the main systematic errors of the GNSS-A positioning technique. Based on data from a sea trial in shallow water, this paper studies the functional model of GNSS-A positioning. The impact of the two systematic errors on seafloor positioning is analysed and corresponding processing methods are proposed. The results show that the offset in the lever arm measurement should be parameterised in the observation equation. Given the high correlation between the vertical lever arm offset and the vertical coordinate of the seafloor station, a sample search method was introduced to fix the vertical offset correction. If the calibration of the sound velocity profiler cannot be ensured, the correction parameter of the sound velocity bias should be solved. According to the refined functional model and corrections, the position of a seafloor station in shallow water can be determined with a precision of better than 1 cm.
资助项目	Basic Scientific Fund for National Public Research Institutes of China[2018Q04]
WOS关键词	UNDERWATER ; LOCALIZATION ; GPS ; TRANSPONDER ; PRECISE ; ERROR
WOS研究方向	Remote Sensing
语种	英语
出版者	MDPI
WOS记录号	WOS:000477049000097
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/30093]
专题	自然资源部第一海洋研究所
通讯作者	Liu, Yanxiong
作者单位	1.Wuhan Univ, Sch Geodesy & Geomat, Wuhan 430079, Hubei, Peoples R China 2.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Chen, Guanxu,Liu, Yang,Liu, Yanxiong,et al. Adjustment of Transceiver Lever Arm Offset and Sound Speed Bias for GNSS-Acoustic Positioning[J]. REMOTE SENSING,2019,11(13).
APA	Chen, Guanxu,Liu, Yang,Liu, Yanxiong,Tian, Ziwen,&Li, Menghao.(2019).Adjustment of Transceiver Lever Arm Offset and Sound Speed Bias for GNSS-Acoustic Positioning.REMOTE SENSING,11(13).
MLA	Chen, Guanxu,et al."Adjustment of Transceiver Lever Arm Offset and Sound Speed Bias for GNSS-Acoustic Positioning".REMOTE SENSING 11.13(2019).