12 May 2016 Representing SAR complex image pixels
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Abstract
Synthetic Aperture Radar (SAR) images are often complex-valued to facilitate specific exploitation modes. Furthermore, these pixel values are typically represented with either real/imaginary (also known as I/Q) values, or as Magnitude/Phase values, with constituent components comprised of integers with limited number of bits. For clutter energy well below full-scale, Magnitude/Phase offers lower quantization noise than I/Q representation. Further improvement can be had with companding of the Magnitude value.
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A. W. Doerry, A. W. Doerry, "Representing SAR complex image pixels", Proc. SPIE 9829, Radar Sensor Technology XX, 98291L (12 May 2016); doi: 10.1117/12.2214516; https://doi.org/10.1117/12.2214516
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