一种基于散射路径识别匹配的散射体定位算法  

A Scatterer Location Algorithm Based on Scattering Path Recognition and Matching

作　　者：焦旸 邓平[1] JIAO Yang;DENG Ping(Southwest Jiaotong University,Chengdu Sichuan 611756,China)

机构地区：[1]西南交通大学,四川成都611756

出　　处：《通信技术》2022年第5期565-573,共9页Communications Technology

基　　金：国家自然科学基金项目(61871332)。

摘　　要：针对非视距(Non Line of Sight,NLOS)环境下散射体的定位问题,提出了一种基于路径识别匹配的定位算法。假设移动台(Mobile Station,MS)和基站(Base Station,BS)之间的传输信号都是单次散射信号,首先根据目标可能位置线(Line of Possible Mobile Device,LPMD)模型原理计算出LPMD,利用改进的基于LPMD的单次散射路径识别匹配算法对单次散射路径进行分类;其次将已归类的路径作为定位该散射体的前提条件,利用改进的基于到达时间差/到达角(Time Difference of Arrival/Angle of Arrival,TDOA/AOA)定位算法定位散射体。仿真结果表明,该算法在NLOS环境下具有良好的散射体定位性能。Aiming at the location of scatterers in non line of sight(NLOS)environment,a location algorithm based on path recognition and matching is proposed.This paper assumes that the transmission signals between MS(Mobile Station)and BS(Base Station)are all single scattering signals.First,the LPMD is calculated according to the principle of LPMD(Line of Possible Mobile Device)model,and the single scattering paths are classified by using the improved single scattering path identification and matching algorithm based on LPMD.Then,the classified path is taken as the prerequisite for locating the scatterer,and the improved location algorithm based on TDOA/AOA(Time Difference of Arrival/Angle of Arrival)is used to locate the scatterer.Simulation results indicate that the algorithm has good scatterer localization performance in NLOS environment.

关 键 词：非视距传播 目标可能位置线 路径识别匹配 散射体 

分 类 号：TN915.9[电子电信—通信与信息系统]