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Investigation of Bistatic Radar Imaging for Counter-Explosive Hazard Applications

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Technical Report,01 Mar 2017,30 Jun 2018

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CCDC Army Research Laboratory Adelphi United States

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This report is an investigation into whether active, coherent bistatic radar systems are a viable solution for imaging and detection of counter-explosive hazards CEHs. The study is based on computer models of the radar signatures of targets typical for this application, such as shallow-buried landmines. These models allow us to evaluate the bistatic target radar cross section as well as the target-to-clutter ratio, in the presence of distributed terrain clutter, for various sensing geometries and polarizations. This is followed by an analysis of the images obtained by the bistatic radar system, both in the near- and far-field regions. This analysis emphasizes the significant loss of image resolution at large bistatic angles as well as the difficulty to separate the target response from the specular ground bounce. Since better performance can be readily achieved with traditional quasi-monostatic radar systems, we conclude that bistatic radar imaging at large bistatic angles is not a suitable solution for CEH applications.

Subject Categories:

  • Active and Passive Radar Detection and Equipment

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