Initial Study on the Precision Evaluation for Ultra Short Baseline Positioning System

	Initial Study on the Precision Evaluation for Ultra Short Baseline Positioning System
	Sun, Dajun 1; Zheng, Cuie 1; Yeng, Jun 1; Wu, Yongting 2
	2014
关键词	Ultra short Baseline (USBL) Precision Evaluation Error Ellipses
英文摘要	For USBL (Ultra short Baseline), the positioning precision is a significant technical index. How to use the data gained in field trail to evaluate the precision has become an important problem that the USBL users pay more attention to. This paper used error ellipses theory to evaluate the USBL positioning precision, and after analyzing and computing, verified the conclusion that the error ellipse is equivalent to the statistical results corresponding to the 39.35% of the positioning points and then established a connection between the theoretical error model and the actual statistical results. Therefore, with the correct prior errors information, the USBL positioning precision evaluation can be performed with one of the USBL error ellipses. When the actual data is polluted by system errors, USBL theoretical error ellipse is not consistent with the statistical results of the scatter points. On this occasion, the error ellipse can be a criterion to evaluate system errors. In the last, according to the analysis for the results, this paper made a summary about the method used to evaluate USBL positioning precision combining error ellipse theory and actual positioning scatter points. That is, using the statistical value of the 39.95% of the positioning scatter points as the system precision and the theoretical error ellipse to evaluate the system error. Application has been achieved in the field trail to process data.
会议录	2014 OCEANS - ST. JOHN'S
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
语种	英语
WOS研究方向	Engineering ; Oceanography
WOS记录号	WOS:000369848800098
内容类型	会议论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26448]
专题	自然资源部第一海洋研究所
通讯作者	Sun, Dajun
作者单位	1.Harbin Engn Univ, Sci & Technol Underwater Acoust Lab, Harbin, Peoples R China 2.SOA, Inst Oceanog 1, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Sun, Dajun,Zheng, Cuie,Yeng, Jun,et al. Initial Study on the Precision Evaluation for Ultra Short Baseline Positioning System[C]. 见:.