Improved TDOA algorithm for underground positioning considering anchor position error

Autor:	LI Shiyin, ZHU Yuan, WANG Xiaoming
Jazyk:	čínština
Rok vydání:	2019
Předmět:	underground precise positioning tdoa anchor position error convex optimization iterative positioning algorithm Mining engineering. Metallurgy TN1-997
Zdroj:	Gong-kuang zidonghua, Vol 45, Iss 11, Pp 10-13 (2019)
Druh dokumentu:	article
ISSN:	1671-251X 1671-251x
DOI:	10.13272/j.issn.1671-251x.17486
Popis:	In view of problems that underground TDOA positioning algorithm does not consider anchor position error and positioning accuracy is seriously reduced when measurement noise is large, an improved TDOA algorithm for underground positioning considering anchor position error was proposed. The anchor position error is taken as a parameter to improve TDOA positioning model, and the iterative TDOA algorithm based on convex optimization is used to solve the model. The simulation results show that the algorithm can achieve the positioning accuracy of 5 cm when position error of the anchor is 1 cm,and effectively approximate the Cramer-Rao Low Bound(CRLB) even when the measurement noise is large, which is better than the existing TSWLS algorithm and improved TSWLS algorithm.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/aa0948024917412495834733749d585d Zobrazit plný text záznamu View record in DOAJ