• Mathematics, Medicine, Computer Science
  • Published in IEEE Trans. Image Processing 2000
  • DOI:10.1109/83.862648

Focusing resonance signatures in ultra-wideband SAR images by allpass filtering

@article{Rau2000FocusingRS,
  title={Focusing resonance signatures in ultra-wideband SAR images by allpass filtering},
  author={Richard Rau and James H. McClellan},
  journal={IEEE transactions on image processing : a publication of the IEEE Signal Processing Society},
  year={2000},
  volume={9 9},
  pages={
          1640-4
        }
}
This correspondence shows that resonance signatures in ultra-wideband synthetic aperture radar (SAR) images, which are smeared out due to their late arrival time, can be focused and extracted by postfiltering the SAR images with special two-dimensional (2-D) allpass filters. A design algorithm for FIR approximations to the desired allpass filters based on radial slice approximations (RSA) is presented. 

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