摘要
蓝牙技术的普及以及蓝牙4.0标准规范的提出,使得利用蓝牙技术实现室内定位具有极其广阔的应用前景.把模糊理论应用于蓝牙室内定位系统,提出一种模糊指纹定位算法.基于该算法的定位过程分为离线和在线两个阶段:离线阶段建立模糊指纹库;在线阶段对手机客户端进行实时模糊决策定位.仿真实验结果表明,该算法的平均定位误差为1.36 m,相比于传统的指纹标定法,其定位精度提高约49%,而计算量缩减至原来的1/c,其中c为模糊聚类类别数.
Popularity of Bluetooth technology and the proposition of Bluetooth Specification Version 4.0 make indoor location have a broad application prospect.The fuzzy theory is applied in indoor location based on Bluetooth,and a fuzzy fingerprint location algorithm is proposed.The location process is divided into two parts： off-line and on-line.A fuzzy fingerprint database is established in the off-line stage,and real-time location of cell phone clients is realized in the on-line stage.Simulation results show that the average location error is 1.36 m.Compared with traditional fingerprint calibration method,location precision is improved by 49%and computation complexity is reduced to 1/c where c is the category number of fuzzy clustering.
出处
《上海大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第2期126-131,共6页
Journal of Shanghai University:Natural Science Edition
基金
上海市科委基金重点资助项目(08706201000
08700741000)
上海市教委重点学科建设资助项目(J50104)
关键词
蓝牙4
0标准规范
室内定位
模糊理论
位置指纹
实时
Bluetooth Specification Version 4.0
indoor location
fuzzy theory
location fingerprint
real-time
