摘要
针对目前WiFi(wireless fidelity)的加权质心定位算法精度不足的问题,研究了基于卫星定位中的精度因子(dilution of precision, DOP)与WiFi定位中的信号强度(received signal strength indication, RSSI)融合的技术方案,提出了改善接入点(access point, AP)数量的方法,优化了算法模型,达到了更优的室内定位效果。仿真试验结果表明,该方法能提高加权质心定位算法的精确度,可广泛应用于各种室内定位场景。
Aiming at the problem of insufficient accuracy of WiFi(wireless fidelity)-based weighted centroid localization algorithm,a method for improving the amount of AP(access point)in weighted centroid localization was proposed.This method combined the DOP(dilution of precision) in satellite positioning with the RSSI (received signal strength indication) in WiFi positioning to select a better combination of AP.The simulation test results show that the proposed method can improve the accuracy of weighted centroid localization algorithm and can be widely used in various indoor positioning scenarios.
作者
袁正
杨涛
YUAN Zheng;YANG Tao(Shanghai Research Institute of Joint Electronic Business,Shanghai 200051,China;College of Network Education,Donghua University,Shanghai 200051,China)
出处
《东华大学学报（自然科学版）》
CAS
北大核心
2019年第3期406-411,430,共7页
Journal of Donghua University(Natural Science)
基金
东莞市专业镇创新服务平台建设资助项目(虎门服装专业镇转型升级项目)
广东省协同创新与平台环境建设专项资金资助项目(2014B090908004)
关键词
精度因子
信号强度
接入点选择
室内定位
dilution of precision
received signal strength indication
access point selection
indoor positioning
