一种基于MIMO的LLOP定位算法

摘要

In order to solve the problem that location accuracy of LTE moblie station is low in the NLOS environment,based on the traditional LLOP algorithm,this paper offers a new algorithm which based on the technology of MIMO.This algorithm uses the character of multiple antenna transmission technology in MIMO to built a concentric circle positioning model,then averaging the positioning array. It can improve the location accuracy by reducing the NLOS error.Numerical simulations show that this new algorithm can get a more accurate results than LLOP in the NLOS error.%针对LTE终端在非可视距传播（NLOS）环境下定位精度较低的问题，在原有LLOP定位算法的基础上，提出一种基于MIMO技术的定位算法。该算法利用MIMO技术多天线传输的特性，构造同心圆定位模型，并对多定位点阵列求均值，从而达到消除NLOS误差提升定位精度的目的。仿真结果表明，提出的算法在NLOS环境下定位精度要高于传统LLOP定位算法。