Ultra-Wideband Positioning System Using TWR and Lateration Methods

Abstract

Indoor wireless positioning systems enables location based applications to work properly inside buildings. Since GPS technology could not supply desired precision in indoor environment, there has been many positioning systems developed based on different technologies to solve localization problem. In this paper, indoor navigation system based on Ultra-Wideband technology has been proposed. Then, ranging model of the tracking system is established. Trilateration, Least Square Estimation and Centroid Method positioning algorithms are applied to provide a realistic comparison between them. Results are analyzed to compare the accuracy between different algorithms and the ideas are shared to improve the current study.