ZigBee网络中RSSI的测距模型分析  

Analysis of RSSI ranging model at ZigBee network

作　　者：陈群[1,2] 高星伟[1] 郭杭[2] 李英成[1] 李海涛[1] 王恩泉[1] 徐彦田[1] 

机构地区：[1]中国测绘科学研究院,北京100830 [2]南昌大学,南昌330031

出　　处：《测绘科学》2012年第5期38-39,75,共3页Science of Surveying and Mapping

基　　金：中国测绘科学研究院基本科研业务费项目(7771017/7771020);科技部国际合作项目(2010DFA70990);江西省国际合作项目(2009BHA18300)

摘　　要：本文在分析常规的RSSI对数模型下,提出一个新的路径损耗因子动态变化模型(N-Model):在室外空旷地带用ZigBee节点获取RSSI数据,分别用对数模型、多项式模型以及本模型做曲线拟合,结果表明在短距离(<15m)情况本模型优于另两种模型。在中长距离(15m～110m)的情况下,多项式模型能达到较好的效果。This paper analyzed the conventional RSSI logarithmic model,proposed a novel model （N-Model） which is dynamic of the path loss factor. The authors used ZigBee nodes to obtain experimental datas of RSSI in an Open square. By curve fitting the data were used for logarithmic model, polynomial model and the N-Model, the results showed that in the case of the short distance （ 〈 15m）, this new model is superior to the other two models. In the long distance （ 15m ~ 110m）, the polynomial model achieves better results.

关 键 词：RSSI 对数模型 多项式模型 路径损耗因子 ZIGBEE 

分 类 号：P225[天文地球—大地测量学与测量工程]