Research on TDOA/AOA Fusion Algorithm Based on UWB Technology

Abstract

This paper presents a joint UWB positioning technology and improved TDOA / AOA fusion positioning algorithm which is improved by a two-dimensional algorithm. In the framework of UWB technology, the initial coordinates of the target node are calculated by combining the measurement algorithm AOA and the TDOA algorithm in the two-dimensional plane. An improved algorithm is proposed to calculate the weight coefficient using the initial node coordinates and eliminate the error interference, and then calculate the final location of the label according to the weighting coefficient. Experimental results show that the improved TDOA / AOA fusion algorithm is significantly superior to the original TDOA / AOA fusion algorithm in positioning accuracy.