A new map based method for NLOS mitigation in the UWB indoor localization system

Abstract

Indoor localization systems are getting more and more attention nowadays, as demand for location based services (LBS) is rising. Indoor propagation environment is quite demanding, with high influence of multipath and through-obstacle signal propagation, such conditions have negative impact on the indoor positioning. NLOS (non-line of sight) propagation is especially problematic and should be dealt with. In the paper a novel method for NLOS mitigation in UWB localization system is presented. System architecture is shown along with the description of the proposed method. Results of the performed experiment are also discussed.