Design of high-precision wireless UWB indoor positioning system

With the continuous development of modern technology, satellite positioning technology has been applied in outdoor positioning in depth, while positioning technology in indoor environment is yet to be developed. In this paper, an embedded hardware platform based on DWM1000 for the integration of anchor and tag of ultra-wideband (UWB) indoor positioning system is proposed, and STM32FI03RCT6 microcontroller is used as the main controller to realize the communication function between anchor and tag. Moreover, the time difference of arrival (TDOA) model combined with Taylor algorithm is selected as the positioning algorithm in this study. Finally, the results show that the positioning error can be controlled within 10 cm.