Performance Study of an Ultra-Wideband Indoor Localization and Asset Tracking System

Abstract

According to the results of our experimental study, the accuracy of the UWB position system depends upon several factors, including precise knowledge of all receiver and reference tag locations. Absolute tag position accuracy of better than 19 cm has been demonstrated in an open space and 48 cm for a closed space. It is recommended that the receiver be located as high as possible to cover a larger area. Also, it is important to strategically select the direction of the receiver and have a minimum of one set of line of sight between a receiver and a tag in any location, which can significantly affect a tag’s position accuracy. This chapter also presented a methodology for autonomous end-to-end navigation of mobile wireless robots for automated construction applications when the working environment is known a priori. As an on-going research effort, this study investigates methods to determine