Ultrawideband radar target detection for sloped and diffuse scattering environments

Atindra K. Mitra; Thomas L. Lewis; James P. LaRue; Arnab Kumar Shaw

doi:10.1117/12.543844

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2 September 2004 Ultra-wideband radar target detection for sloped and diffuse scattering environments

Atindra K. Mitra, Thomas L. Lewis, James P. LaRue, Arnab Kumar Shaw

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Proceedings Volume 5427, Algorithms for Synthetic Aperture Radar Imagery XI; (2004) https://doi.org/10.1117/12.543844
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

This paper extends simulation and target detection results from an investigation entitled "Self-Training Algorithms for Ultra-wideband SAR Target Detection" that was conducted last year and presented at the 2003 SPIE Aerosense Conference on "Algorithms for Synthetic Aperture Radar Imagery." Under this approach, simulated SAR impulse clutter data was generated by modulating a tophat model for the SAR video phase history with K-distributed data models. Targets were synthesized and "instanced" within the SAR image via the application of a dihedral model to represent broadside targets. For this paper, these models are extended and generalized by developing a set of models that approximate major scattering mechanisms due to terrain relief and approximate major scattering mechanisms due to scattering from off-angle targets. Off-angle targets are difficult to detect at typical ultra-wideband radar frequencies and are denoted as "diffuse scatterers." Potential approaches for detecting synthetic off-angle targets that demonstrate this type of "diffuse scattering" are developed and described in the algorithms and results section of the paper. A preliminary set of analysis outputs are presented with synthetic data from the resulting simulation testbed.

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Atindra K. Mitra, Thomas L. Lewis, James P. LaRue, and Arnab Kumar Shaw "Ultra-wideband radar target detection for sloped and diffuse scattering environments", Proc. SPIE 5427, Algorithms for Synthetic Aperture Radar Imagery XI, (2 September 2004); https://doi.org/10.1117/12.543844

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