传感技术学报2016，Vol.29Issue(11)：1731-1736,6.DOI:10.3969/j.issn.1004-1699.2016.11.017
基于RSSI路径损耗因子动态修正的三边质心定位算法
Dynamic Correction Algorithm for Trilateral Centroid Localization Based on RSSI Path Loss Factor
摘要
Abstract
To solve the poor positioning accuracy problem caused by environmental interference,the paper proposes a trilateral centroid algorithm that according to the actual environment to dynamically adjust the path loss factor n. Firstly,the author measures the corresponding relationship between RSSI and n with different distances in the actu⁃al environment. Then considering the partial similarity of interference factors,the author revises a dynamic nR by us⁃ing the new measured RSSI and the corresponding relation,which fully reflects the closely relationship between the n and environment factors. Finally,the paper uses the trilateral centroid algorithm to locate the points. Simulation shows that the algorithm reduces the error caused by environmental interference,and significantly improves the po⁃sitioning accuracy.关键词
无线传感器网络/定位/路径损耗因子/动态修正Key words
wireless sensor networks/localization/path loss factor/dynamic correction分类
信息技术与安全科学引用本文复制引用
张宏刚,黄华..基于RSSI路径损耗因子动态修正的三边质心定位算法[J].传感技术学报,2016,29(11):1731-1736,6.
