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

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.

[1]  Choi L. Law,et al.  Non-synchronised time difference of arrival localisation scheme with time drift compensation capability , 2011, IET Commun..

[2]  Shahrokh Valaee,et al.  Received-Signal-Strength-Based Indoor Positioning Using Compressive Sensing , 2012, IEEE Transactions on Mobile Computing.

[3]  Zoubir Irahhauten,et al.  2D UWB localization in indoor multipath environment using a joint ToA/DoA technique , 2012, 2012 IEEE Wireless Communications and Networking Conference (WCNC).

[4]  Christian Schindelhauer,et al.  Single transceiver device-free indoor localization using ultrasound body reflections and walls , 2015, 2015 International Conference on Indoor Positioning and Indoor Navigation (IPIN).

[5]  Dieter Brückmann,et al.  Reliable and low-cost indoor localization based on bluetooth low energy , 2016, 2016 3rd International Symposium on Wireless Systems within the Conferences on Intelligent Data Acquisition and Advanced Computing Systems (IDAACS-SWS).

[6]  José López Vicario,et al.  Ranging in UWB using commercial radio modules: Experimental validation and NLOS mitigation , 2016, 2016 International Conference on Indoor Positioning and Indoor Navigation (IPIN).

[7]  Bruce Denby,et al.  Correcting non-line-of-sight path length estimation for ultra-wideband indoor localization , 2015, 2015 International Conference on Location and GNSS (ICL-GNSS).

[8]  Benoît Champagne,et al.  Sensor localization in NLOS environments with anchor uncertainty and unknown clock parameters , 2015, 2015 IEEE International Conference on Communication Workshop (ICCW).

[9]  Ke Wang,et al.  Optical Wireless-Based Indoor Localization System Employing a Single-Channel Imaging Receiver , 2016, Journal of Lightwave Technology.

[10]  Eiji Okamoto,et al.  An improved NLOS detection scheme using stochastic characteristics for indoor localization , 2015, 2015 International Conference on Information Networking (ICOIN).