Interpolated spatially variant apodization in synthetic aperture radar imagery

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 algorith...

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Bibliographic Details
Published in:Applied optics (2004) 2000-05, Vol.39 (14), p.2310-2312
Main Authors: Yocky, D A, Jakowatz, C V, Eichel, P H
Format: Article
Language:English
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Summary: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 1.3x-versus-2.0x oversampled data can be performed in half the time without loss of image quality.
ISSN:1559-128X
DOI:10.1364/AO.39.002310