Through-The-Wall Surveillance


  1. Gauthier, S.
  2. Chamma, W.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
This report describes the DRDC Ottawa research activites and major findings on through-the-wall surveillance, using ultra-wideband (UWB) short-pulse (SP) radars. These activities include both experiments and simulations. Off-the-shelf UWB radio frequency (RF) equipment was purchased to support experimental investigations. For simulations, a 3D computer model of a single room with a cubic, conducting target was developed. UWB radar located outside the room transmits short UWB pulses while the target is moved around the room in discrete steps. At the beginning of the section, we first show that motion detection is easy, since the radar echoes continuously change in time. However, simple motion detection does not provide enough information for most applications of interest. Thre is a clear requirement to measure the range and direction of themoving targets. Clutter from fixed clutter is to use difference waveforms, obtained by subtracting echo waveforms from each of fixed clutter. The next step is to determine the direction of the moving target. An antenna array combined with back-projection processing is used for that purpose. The simulated results clearly demonstrate that hidden targets can be tracked in both range and direction. These results have been comfirmed experimentally.

Il y a un résumé en français ici.

Through-the-wall;Surveillance;Radar;Ultrawideband;Through-Wall radar;UWB (Ultra WideBand);Through-wall imaging;Ultra-Wideband radar;Wall attenuation
Report Number
DRDC-OTTAWA-TM-2002-108 — Technical Memorandum
Date of publication
01 Oct 2002
Number of Pages
Hardcopy;CD ROM

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