Investigation of Localization Accuracy for UWB Radar Operating in Complex Environment

The aim of this paper is to investigate localization accuracy of ultra wideband (UWB) radar with a minimal antenna array taking in the account complexity of the real environment (extended and multiple targets, presence of wall or other obstacle in the line of sight, practical restrictions of antenna setting). Simulation-based results show how the localization accuracy depends on the radar range resolution, deployment of the radar antennas and the accuracy of ranges estimated between transmitting antenna-targetreceiving antenna. As the output, the distributions of the average localization errors in the monitored area are obtained. Their correctness is demonstrated by processing of the signals acquired by two M-sequence UWB radars with different range resolution and coverage.

[1]  Jana Rováková,et al.  Complete signal processing for through wall tracking of moving targets , 2010 .

[2]  Sai-Wing Leung,et al.  An analysis of the shadow feature technique in radar detection , 1999 .

[3]  Alexander M. Haimovich,et al.  Target Localization Accuracy Gain in MIMO Radar-Based Systems , 2008, IEEE Transactions on Information Theory.

[4]  M. Aftanas,et al.  An Analysis of 2D Target Positioning Accuracy for M-sequence UWB Radar System under Ideal Conditions , 2007, 2007 17th International Conference Radioelektronika.

[5]  Jürgen Sachs,et al.  Handbook of Ultra-Wideband Short-Range Sensing: Theory, Sensors, Applications , 2012 .

[6]  Dusan Kocur,et al.  Compensation of Wall Effect for Through Wall Tracking of Moving Targets , 2009 .

[7]  R. Buehrer,et al.  A new Cramer-Rao lower bound for TOA-based localization , 2008, MILCOM 2008 - 2008 IEEE Military Communications Conference.

[8]  Dusan Kocur,et al.  TOA Estimation and Data Association for Through-Wall Tracking of Moving Targets , 2010, EURASIP J. Wirel. Commun. Netw..

[9]  Wolfgang Koch,et al.  Accuracy analysis for TDOA localization in sensor networks , 2011, 14th International Conference on Information Fusion.

[10]  V. Schwarz,et al.  Accuracy of an UWB localization system based on a CMOS chip , 2005 .

[11]  R. Yelf,et al.  Where is true time zero ? , 2004, Proceedings of the Tenth International Conference on Grounds Penetrating Radar, 2004. GPR 2004..

[12]  G.B. Giannakis,et al.  Localization via ultra-wideband radios: a look at positioning aspects for future sensor networks , 2005, IEEE Signal Processing Magazine.

[13]  G. Richard Curry Radar System Performance Modeling , 2004 .

[14]  Hendrik Rogier,et al.  Microwave and Millimeter Wave Circuits and Systems: Emerging Design, Technologies and Applications , 2012 .