Indoor UWB Location Based on Residual Weighted Chan Algorithm

A residual weighted Chan algorithm is proposed to solve the problem that GPS can not be used for indoor precise positioning. In this paper, the TDOA-base Chan algorithm is derived, and the coordinate position of the measurement point is obtained. Then, the target position is accurately calculated by the residual weight, and the positioning service is provided for the user. The results of laboratory experiments show that the accuracy of the algorithm meets the basic requirements of indoor positioning and improves the error of three-dimensional positioning height.