Freight positioning technology of high speed railway carriage based on UWB

High speed moving object location based on UWB ranging calibration

“…For example, the literature [4] proposed a co-location combining DS-TWR and TDOA, Waqar proposed a distance error minimization algorithm to analyze the error of each anchor point [5] , Fan proposed to combine the weighted least squares and Kalman filter to solve the distance deviation caused by NLOS error [6] . Filter processing and algorithm fusion are adopted for the motion target, For example, Zhenjie proposed a distance estimation based on motion state recognition [7] , Siquan proposed a TWRbased UWB method to solve the ranging problem between moving vehicles [8] .Qinghua, Li proposed particle filter to process ranging data, and used weighted least squares method to locate objects [9] .…”