Multiresolution generalized likelihood ratio detection approach to target screening in synthetic aperture radar data

Nikola S. Subotic; Leslie M. Collins; Michael F. Reiley; John D. Gorman

doi:10.1117/12.210840

5 June 1995 Multiresolution generalized likelihood ratio detection approach to target screening in synthetic aperture radar data

Nikola S. Subotic, Leslie M. Collins, Michael F. Reiley, John D. Gorman

Author Affiliations +

Proceedings Volume 2487, Algorithms for Synthetic Aperture Radar Imagery II; (1995) https://doi.org/10.1117/12.210840
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

We present a detection concept for initial target screening based on features that are derived from a multiresolution decomposition of synthetic aperture radar (SAR) data. The physical motivation of the multiresolution feature-based approach is the exploitation of signature oscillations produced by the interference between prominant scatterers in cultural objects when resolution is varied. We develop a generalized likelihood ratio test detector which differentiates between first order autoregressive multiresolution processes attributed to different spatial areas. We then derive two special cases of this detector motivated by arguments regarding the clutter statistics. We show that these schemes significantly outperform a standard energy detector operating on the finest available SAR resolution only.

Citation Download Citation

Nikola S. Subotic, Leslie M. Collins, Michael F. Reiley, and John D. Gorman "Multiresolution generalized likelihood ratio detection approach to target screening in synthetic aperture radar data", Proc. SPIE 2487, Algorithms for Synthetic Aperture Radar Imagery II, (5 June 1995); https://doi.org/10.1117/12.210840

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