基于三球定位原理的改进UWB定位方法

Improved UWB Positioning Method Based on Three-ball Positioning Principle

在复杂的车间环境下,UWB信号传播会出现多径效应和非视距传播的问题。为了提高定位精度,提出了一种改进的UWB定位方法。该方法在三个基站的基础上再加一组基站,通过滑动窗口滤波处理基站的测距信息,利用四组基站三维坐标求解中心坐标。实验表明,改进的定位方法相较于三组基站定位方法,定位误差范围在X轴、Y轴上都有明显减小,定位精度更高,可以满足在复杂室内环境下的定位需求。

In complex workshop environment,UWB signal propagation will appear multipath effect and non-line-of-sight propagation.In order to improve the positioning accuracy,an improved UWB positioning method is proposed.In this method,a group of base stations is added to the three base stations,the ranging information of base stations is processed by sliding window filtering,and the center coordinates are solved by four groups of three-dimensional coordinates of base stations.Experiments show that compared with the three groups of base station positioning methods,the improved positioning method has significantly reduced the positioning error range on the X axis and Y axis,and has higher positioning accuracy,which can meet the positioning requirements in complex indoor environment.