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
Original Manuscript: August 23, 1999
Revised Manuscript: February 23, 2000
Published: May 10, 2000
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)