Publications [#60435] of Leslie M. Collins

Papers Published

1. Subotic, N.S. and Collins, L.M. and Reiley, M.F. and Gorman, J.D., A multiresolution generalized likelihood ratio detection approach to target screening in synthetic aperture radar data, Proc. SPIE - Int. Soc. Opt. Eng. (USA), vol. 2487 (1995), pp. 226 - 34, Orlando, FL, USA
   (last updated on 2007/04/11)

   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 (GLRT) which differentiates between first order autoregressive (AR) 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

   Keywords:
   autoregressive processes;feature extraction;image resolution;interference (signal);radar clutter;radar detection;radar imaging;statistical analysis;synthetic aperture radar;