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Interpolated spatially variant apodization in synthetic aperture radar imagery

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Abstract

The original formulation of spatially variant apodization for complex synthetic aperture radar imagery concentrated on integer-oversampled data. Noninteger-oversampled data presented previously [IEEE Trans. Aerosp. Electron. Syst. 31, 267 (1995)] suggested use of different weightings in the algorithm. An alternative noninteger-oversampled approach that employs the same apodization concept but uses local spatial interpolation is presented. With this approach the combined image formation, apodization, and detection of 1.3×-versus-2.0× oversampled data can be performed in half the time without loss of image quality.

© 2000 Optical Society of America

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