Range cell migration in the spotlight SAR Polar Format Algorithm

被引：0
|
作者：
Stacy, NJS [1 ]
机构：
[1] Def Sci & Technol Org, Surveillance Syst Div, Salisbury, SA 5108, Australia
来源：
IGARSS 2000: IEEE 2000 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOL I - VI, PROCEEDINGS | 2000年
关键词：
D O I：
暂无
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
Compensation of scatterer range cell migration is an important aspect of accurate spotlight SAR image formation. The Polar Format Algorithm (PFA) is a method for processing fine resolution SAR radar data which utilizes a polar arrangement of the echo spectra in the backscatter frequency domain. It is shown here that the PFA resampling from a polar to rectangular grid generates a linear phase function on the resampled data that after the Fourier transform to the image domain, fully compensates the linear component of the range cell migration. This new perspective of the PFA range cell migration correction is derived using signal phase history and tomographic approaches.
引用
收藏
页码：2275 / 2277
页数：3
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