一种新颖的移动通信网络定位方法

A novel positioning method for mobile communication network

针对普通的基于时间提前量、信号到达角度的移动通信网络信号定位方法受非视距传播的影响较大,定位精度较低的问题,本文提出了一种基于最小二乘法和梯度法的接收信号强度定位方法。首先,用最小二乘法得到待定位坐标的初始解;其次,以该点为迭代起点,用梯度法求出定位的最优解。应用案例证明该方法的定位精度为20 m左右,达到通信业界领先水平。

In response to the problem that ordinary signal localization methods based on time advance and signal arrival angle in mobile communication networks are greatly affected by non line of sight propagation and have low localization accuracy,this paper proposes a received signal strength localization method based on least squares and gradient methods.Firstly,obtain the initial solution of the coordinates to be located using the least squares method;Secondly,using this point as the starting point for iteration,use the gradient method to find the optimal solution for localization.The application case proves that the positioning accuracy of this method is about 20 meters,reaching the leading level in the communication industry.