基于RSS空时处理的指纹定位算法  

Fingerprint algorithm for positioning based on RSS space-time processing

作　　者：王顶[1] 马娟[1] 赵颐轩[1] 

机构地区：[1]西北工业大学电子信息学院,西安710129

出　　处：《计算机应用研究》2012年第12期4726-4728,共3页Application Research of Computers

基　　金：航天支撑技术基金资助项目(2009XW080002);西北工业大学基础研究基金资助项目(GBKY1011)

摘　　要：为提高移动台定位算法的精度,研究了基于接收信号强度(received signal strength,RSS)空时处理的指纹定位算法。该算法包含指纹数据库的建立和指纹比对,在指纹数据库建立过程中,利用空时处理的方法克服无线信号的衍射﹑散射等影响;指纹比对时,研究了相同邻小区个数的选择对定位误差的影响,得出相同邻小区个数的最优选择。仿真结果表明,算法减小了RSS的波动性,具有低运算复杂度和高精度。In order to improve the accuracy of the mobile station positioning algorithm,this paper studied the fingerprint algorithm for positioning based on RSS space-time processing.The algorithm which included the establishment of fingerprint database and fingerprint comparison used the RSS space-time processing method to overcome diffraction,scattering,etc of the wireless signal when creating the fingerprint database,studied the impact of the choice of same neighboring cell numbers on the positioning errors and got the best choice of same neighboring cell numbers when doing fingerprint comparison.The error simulation results show that the algorithm reduces the time variation of RSS and has low complexity and high accuracy.

关 键 词：移动台定位 指纹算法 RSS空时处理 指纹数据库 指纹比对 

分 类 号：TN929[电子电信—通信与信息系统] TP301.6[电子电信—信息与通信工程]