Total Least Squares Method for Robust Source Localization in Sensor Networks Using TDOA Measurements. (4th August 2011)

• Record Type: Journal Article
• Authors: Weng, Yang; Xiao, Wendong; Xie, Lihua
• Is Part Of: International journal of distributed sensor networks. (2011)
• Publication Date: 2011-08-04
• Subjects: Sensor networks -- Periodicals; Intelligent agents (Computer software) -- Periodicals; Multisensor data fusion -- Periodicals; 681.2
• DOI: 10.1155/2011/172902
• Languages: English
• ISSNs: 1550-1329

Abstract

Abstract : The TDOA-based source localization problem in sensor networks is considered with sensor node location uncertainty. A total least squares (TLSs) algorithm is developed by a linear closed-form solution for this problem, and the uncertainty of the sensor location is formulated as a perturbation. The sensitivity of the TLS solution is also analyzed. Simulation results show its improved performance against the classic least squares approaches.