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. <b>31,</b> 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
David A. Yocky, Charles V. Jakowatz, and Paul H. Eichel, "Interpolated Spatially Variant Apodization in Synthetic Aperture Radar Imagery," Appl. Opt. 39, 2310-2312 (2000)