Yocky D A, Jakowatz C V, Eichel P H
Appl Opt. 2000 May 10;39(14):2310-2. doi: 10.1364/ao.39.002310.
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.
复杂合成孔径雷达图像空间可变切趾的最初公式化集中在整数过采样数据上。先前 [《IEEE 航空航天与电子系统汇刊》31, 267 (1995)] 提出的非整数过采样数据表明在算法中应使用不同的加权。本文提出了一种替代的非整数过采样方法，该方法采用相同的切趾概念，但使用局部空间插值。通过这种方法，1.3倍与2.0倍过采样数据的联合图像形成、切趾和检测可以在一半的时间内完成，且不会损失图像质量。
