一种基于RSSI的三维加权质心定位算法  

A three-dimensional weighted centroid location algorithm based on RSSI

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

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

出　　处：《测绘科学》2013年第4期91-93,共3页Science of Surveying and Mapping

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

摘　　要：定位技术是无线传感器网络的重要支撑技术。基于RSSI的定位技术以其不需额外的硬件、成本低廉而成为无线传感器网络的首选之一。本文在分析一些常用的算法基础上,提出了一种适用于RSSI技术的三维加权质心定位算法,在室外用ZigBee硬件平台进行实验,结果表明定位误差在4m以内,相对定位误差在20%以内的概率到达70%。Location is an important support for Wireless Sensor Network （ WSN ）. Location based on RSSI （ Received Signal Strength Indication） with no extra hardware and low-cost has been a preferred one solution for WSN. By analyzing some common algo- rithms, the paper presented a novel three-dimensional weighted eentroid localization algorithm based on RSSI. An outdoor test with the algorithm in a ZigBee hardware platform was performed. The experiment results showed that the positioning error was less than 4m and 70% probability of relative error was less than 20%.

关 键 词：RSSI模型 加权质心 ZIGBEE 三维定位 

分 类 号：P215[天文地球—测绘科学与技术]