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A physical optics formalism is used to establish a first- principles analysis for discriminating specular returns from diffuse returns in a 1D synthetic aperture radar. The optimum Neyman-Pearson detection processor is shown to substantially outperform the conventional, full-resolution SAR images for extended specular targets embedded in diffuse clutter plus receiver noise. Significant performance advantages, relative to conventional full-resolution SAR processing, are also shown to accrue for optimum Neyman- Pearson reception of an extended diffuse target embedded solely in receiver noise.© (1997) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only. |
