期刊名称：Signal & Image Processing : An International Journal (SIPIJ)
印刷版ISSN：2229-3922
电子版ISSN：0976-710X
出版年度：2013
卷号：4
期号：4
页码：13
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：In this paper, we aim to determine the location information of a node deployed in Wireless SensorNetworks (WSN). We estimate the position of an unknown source node using localization based on linearapproach on a single simulation platform. The Cramer Rao Lower Bound (CRLB) for position estimate isderived first and the four linear approaches namely Linear Least Squares (LLS), Subspace Approach (SA),Weighted Linear Least Squares (WLLS) and Two-step WLS have been derived and presented. Based on thesimulation study the results have been compared. The simulation results show that the Two- step WLSapproach is having higher localization accuracy.
关键词：Source Localization; Time of Arrival; Linear Least Squares; Subspace Approach; Weighted Linear Least;Squares (WLLS); Two-step WLS and CRLB
