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论文类型： 期刊论文

发表时间： 2014-02-10

发表刊物： WIRELESS COMMUNICATIONS & MOBILE COMPUTING

收录刊物： SCIE、EI、Scopus

卷号： 14

期号： 2

页面范围： 210-220

ISSN号： 1530-8669

关键字： target tracking; particle filter; wireless sensor networks; modified sequence distance

摘要： For realizing robust target tracking with wireless sensor networks in the circumstance where the propagation parameters of the characteristic signal emitted by the target are unknown, a novel tracking algorithm under the particle filter framework is proposed. We propose a scheme to realize particle weight calculation without the prior knowledge about the propagation parameters of the target's characteristic signal. With the use of the monotonic relationship of the distance and the received signal strength, we define the signal characteristic sequence and particle distance sequence and utilize the modified sequence distance between the signal characteristic sequence and the particle distance sequence as the criterion to calculate the particle weight blindly with simple lightweight operations. Simulation results demonstrate the effectiveness of the proposed algorithm. Copyright (c) 2011 John Wiley & Sons, Ltd.