基于多模指纹匹配的室内定位系统设计与实现  

Multimode-fingerprint matching based indoor positioning system design and implementation

作　　者：杨广龙[1] 孔勇平[1] 钟致民[1] 张玉良[1] 

机构地区：[1]中国电信股份有限公司广州研究院,广东广州510630

出　　处：《计算机工程与设计》2013年第5期1896-1900,F0003,共6页Computer Engineering and Design

摘　　要：通过分析近年来基于WiFi信号强度检测的室内定位技术研究成果,提出了一种基于WiFi和运营商基站信号(GSM、CDMA2000、WCDMA)等多模信号指纹匹配的室内定位系统。该系统采集WiFi和基站等无线多模信号,经过归一化、平滑化过滤生成与室内定位点相匹配的多模指纹数据库,通过移动终端实时获取的多模指纹信号与多模指纹数据库匹配,从而实现精确的室内定位。实验结果表明,系统能够实现室内精准定位,并对于WiFi信号的变化有较强的适应性。By analyzing the indoor positioning technology research result which is based on WiFi signal strength detection, propo ses a indoor positioning system by match with the signal strength of WiFi and mobile phone （GSM, CDMA2000 and WCDMA）. The system acquires WiFi and mobile phone RSSI, after normalization, smoothing filter to generate a multi-mode fingerprint database matched with indoor positioning. Finally, by match with the multimode fingerprint signal obtained by the mobile in real time and multimode fingerprint database to achieve accurate indoor positioning. The experiment proved that the system can achieve indoor precise positioning, also is with strong adaptability to the change of the WiFi signal.

关 键 词：多模指纹 室内定位 指纹匹配 无线保真 基站信号 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]