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International Journal of Antennas and Propagation
Volume 2010 (2010), Article ID 934602, 14 pages
http://dx.doi.org/10.1155/2010/934602
Research Article

Ultra-Wideband Indoor Channel Modelling Using Ray-Tracing Software for through-the-Wall Imaging Radar

1Laboratoire Informatique Image Interaction (L3I), EA 2118, Université de La Rochelle, Av M. Crépeau, 17042 La Rochelle Cedex 01, France
2Xlim-SIC (Signal Image Communication), UMR CNRS 6172 SP2MI, Bd Marie et Pierre Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France

Received 22 March 2010; Accepted 2 June 2010

Academic Editor: Shyh-Kang Jeng

Copyright © 2010 Christophe Lièbe 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.

Abstract

This paper presents a new software for design of through-the-wall imaging radars. The first part describes the evolution of a ray tracing simulator, originally designed for propagation of narrowband signals, and then for ultra-wideband signals. This simulator allows to obtain temporal channel response to a wide-band emitter (3 GHz to 10 GHz). An experimental method is also described to identify the propagation paths. Simulation results are compared to propagation experiments under the same conditions. Different configurations are tested and then discussed. Finally, a configuration of through-the-wall imaging radar is proposed, with different antennas patterns and different targets. Simulated images will be helpful for understanding the experiment obtained images.