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Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 163958, 8 pages
http://dx.doi.org/10.1155/2013/163958
Research Article

Analysis of Positioning Error for Two-Dimensional Location System

1Information Science and Technology College, Dalian Maritime University, Dalian 116026, China
2School of Electronic and Information Engineering, Beihang University, Beijing 100083, China

Received 4 June 2013; Accepted 11 October 2013

Academic Editor: John Gunnar Carlsson

Copyright © 2013 Yi Jiang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper investigates the positioning error using different positioning techniques for two-dimensional location system. Based on the measurement models of TOA with/without the time synchronization and TDOA techniques, the performance comparison analysis between TOA with/without the time synchronization and TDOA is presented respectively. The performance of TOA with the time synchronization and TDOA is influenced by the specific distribution of the reference nodes. Hence, it is hard to determine which one is better. The performance of TDOA is always superior to TOA without the time synchronization using the same reference nodes. These conclusions are finally illustrated by the simulation results presented in two scenarios.