23 June 1997 P-band focus problem
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For the problem of finding downed aircraft in forested areas, the NASA Search and Rescue Project has developed a system based on using fully polarimetric L-Band and P-Band synthetic aperture radar (SAR). Because of the resolution of the sensor and the size of the target, single-look imagery must be used. The problem of focusing the SAR imagery is a difficult one, especially at P-Band. An approach has been implemented with considerable success, based on a variant of the phase gradient autofocus algorithm, which provides the higher-order-than- quadratic phase correction needed.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Arthur W. Mansfield, Arthur W. Mansfield, Houra Rais, Houra Rais, } "P-band focus problem", Proc. SPIE 3069, Automatic Target Recognition VII, (23 June 1997); doi: 10.1117/12.277110; https://doi.org/10.1117/12.277110

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