基于小波变换的场强定位算法  

Field location algorithms based on the wavelet

作　　者：张晓佳[1] 毛永毅[1] 张晨晨[2] 

机构地区：[1]西安邮电大学电子工程学院,陕西西安710061 [2]西安邮电大学通信与信息工程学院,陕西西安710061

出　　处：《微型机与应用》2015年第12期61-63,共3页Microcomputer & Its Applications

摘　　要：利用服务基站与移动台之间的场强测量值来进行移动台位置估计,并从场强信号传播模型和定位算法出发,提出了一种基于小波变换的改进场强定位算法。通过小波变换来修正传播误差,然后利用LS算法进行定位。仿真结果表明,该基于场强的移动台定位方法在一定程度上提高了定位精度,定位效果明显优于Chan算法、LS算法、Taylor算法。Use the field strength between base station and mobile station to estimate the mobile station. Starting from propagation model of the field signal and positioning algorithm, this paper proposed an improved strength location algorithm based on the wavelet. Use the wavelet to correct the errors of propagation, and then use LS algorithm to locate. The simulation results show that in a certain extent the mobile station positioning method based on field strength improves the positioning accuracy, and positions better than Chan algorithm, LS algorithm and Taylor algorithm.

关 键 词：传播模型 小波变换 场强定位 LS算法 

分 类 号：TN929.53[电子电信—通信与信息系统]