Author(s): WEI Yachuan, LIANG Yan, CHEN Yanjun, ZHOU Wentian
Pages: 418-422
Year: 2010 Issue:  3
Journal: Chinese Journal of Sensors and Actuators
Keyword:  wireless sensor networks; target localization; adaptive localization; attenuation coefficient; weighted centroid localization;
Abstract: 基于声音能量的无线传感器网络目标定位算法因简单易行而受到广泛的关注.传统算法未考虑环境对衰减因子的影响,定位精度较差;提出一套辨识衰减因子的方案,并针对不同环境自适应改变衰减因子以优化加权质心算法的权重,设计了一种自适应加权质心定位算法.实验结果表明,本文算法较之传统加权质心定位算法大幅度提高了定位精度,且适用于更复杂的场景中.