UWB Positioning Analysis and Algorithm Research

In order to improve the accuracy of indoor positioning, this paper studied the three-dimensional positioning method based on TDOA and designed the ranging experiment with or without occlusion. The error data were analyzed by many experiments, and the advantages of strong penetration and good anti-interference ability of UWB signal were verified. At the same time, the UWB positioning direct matrix algorithm is optimized, and the least square matrix method is used to process the positioning data to obtain more accurate position coordinates. The experimental results show that the accuracy of the positioning data can be improved by about 25% by using the least square matrix method.