A short discussion on the exact compensation of the SAR range-dependent range cell migration effect
A short discussion on the exact compensation of the SAR range-dependent range cell migration effect
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DOI：
10.1109/36.649799
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发表时间：
1997-11
期刊：
影响因子：
--
通讯作者：
R. Lanari;G. Fornaro
中科院分区：
文献类型：
--
作者：
R. Lanari;G. Fornaro
Efficient and precise compensation of the range cell migration (RCM) effect is a key point for a fast and accurate synthetic aperture radar (SAR) data processor. In particular the range-dependent nature of the range cell migration effect complicates the compensation operation. It has been recently shown that an exact compensation of the range-dependent RCM (RDRCM) phenomenon can be carried out either by applying the chirp scaling algorithm or the chirp z-transform procedure. This paper investigates the relationship between the two methods. In particular, it is shown that the chirp z-transform based approach represents a particular implementation of the chirp scaling algorithm. A final discussion is dedicated to show how the chirp z-transform and the chirp scaling procedure can be applied within a SAR data processing algorithm.
