信号不规则特性对WSN定位算法评价的影响  

Research on impact of radio irregularity on performance of self-localization in WSN

作　　者：张佳[1] 刘艳昌[1] 王鲜芳[2] 

机构地区：[1]河南科技学院,河南新乡453003 [2]河南师范大学,河南新乡453007

出　　处：《河南科技学院学报（自然科学版）》2013年第1期95-99,共5页Journal of Henan Institute of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金(61173071)

摘　　要：在评价无线传感器网络自身定位算法性能时,大多是基于理想的无线信号传播模式,从而导致测试结果与实际情况相差较大.针对这种情况,研究了WSN在实际环境下无线信号表现出的不规则特性及对自身定位过程的影响,并将RIM模型引入到算法测算的过程中.实验结果表明,信号的不规则特性对于定位算法的评价有着较为明显的影响.Nowadays function of self-localization algorithms of WSN is evaluated mostly based on the idealistic radio propagation model,which brings about the results much different from the practical ones.To solve this problem,this paper investigates and analyzes radio signal irregularity under the practical circumstances and its impact on the self-localization algorithms through introducing the RIM into the course of evaluation.The experimental results prove that radio irregularity has an obvious impact on the evaluation of localization algorithms.

关 键 词：无线传感器网络 自身定位算法 信号不规则特性 信号不规则模型 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]