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International Journal of Antennas and Propagation
Volume 2012, Article ID 678590, 11 pages
Research Article

A Compact UWB Indoor and Through-Wall Radar with Precise Ranging and Tracking

Department of Signals and Systems, Chalmers University of Technology, 41296 Gothenburg, Sweden

Received 19 February 2012; Revised 8 April 2012; Accepted 14 April 2012

Academic Editor: Francesco Soldovieri

Copyright © 2012 Yinan Yu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Ultrawideband (UWB) technology has many advantages compared to its narrowband counterpart in many applications. We present a new compact low-cost UWB radar for indoor and through-wall scenario. The focus of the paper is on the development of the signal processing algorithms for ranging and tracking, taking into account the particular properties of the UWB CMOS transceiver and the radiation characteristics of the antennas. Theoretical analysis for the algorithms and their evaluations by measurements are presented in the paper. The ranging resolution of this UWB radar has achieved 1-2 mm RMS accuracy for a moving target in indoor environment over a short range, and Kalman tracking algorithm functions well for the through-wall detection.