Calibration Method of UWB Indoor Positioning Accuracy Based on Motion Capture System
In order to conduct efficient assessment for the accuracy of the UWB(Ultra Wide-Band) indoor positioning system,a UWB indoor positioning accuracy calibration method based on the motion capture system was put forward.The method was realized by two experiments.In one of the experiments,accuracy verification on the motion capture system was conducted using total station instrument,and the experimental data processing was conducted through Bursa seven parameter coordinate transformation model,which indicates that the accuracy of the motion capture system can meet the requirements and the method can be used in calibrating the accuracy of UWB indoor positioning system.In the second experiment,the accuracy of UWB indoor positioning system was calibrated using motion capture system.Data collected from motion capture system were compared with data collected from UWB indoor positioning system when they were as true value.As the obtained calibration results were in accordance with the actual conditions,the calibration method was verified to be efficient and reliable.