期刊名称：International Journal of Distributed Sensor Networks
印刷版ISSN：1550-1329
电子版ISSN：1550-1477
出版年度：2014
卷号：2014
DOI：10.1155/2014/717534
出版社：Hindawi Publishing Corporation
摘要：The passive object localization (POL) problem in
wireless sensor networks aims to determine the location of a
target without any device attached for receiving or transmitting
signal. This problem is challenging as there is very limited information
available for deriving the target location. By combining
the diffraction and scattering models, we propose a link sensing adaptive
approach to POL, which first decides the target position
attribute based on the signal strength and then localizes the
target in different modes. We conduct rigorous localizability
analyses and design a unit localization area scheme to achieve a
higher level of localization accuracy. The efficacy of the proposed
method is evaluated through comprehensive experiments in real life
network environments.
