NEW METHOD FOR THE COMPENSATION OF THE SAR RANGE CELL-MIGRATION BASED ON THE CHIRP Z-TRANSFORM

被引：86

作者：

LANARI, R ^{[1
]}

机构：

[1] DEUTSCH FORSCHUNGSANSTALT LUFT & RAUMFAHRT,INST HOCHFREQUENZTECH,D-82230 OBERPFAFFENHOFEN,GERMANY

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 1995年 / 33卷 / 05期

关键词：

D O I：

10.1109/36.469496

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Precision Synthetic Aperture Radar (SAR) data processing requires the compensation of the range-dependent range cell migration (RDRCM) phenomenon. This paper describes a new method that permits the compensation of the RDRCM effect using a nonstandard Fourier transform (FT). This operation is applied, in the two-dimensional Fourier domain, to the range signal spectrum and allows the compensation of the azimuth frequency-dependent scaling factor due to the RDRCM. The nonstandard FT is performed via a chirp z-transform that is carried out with one convolution operation and two phase multiplications.

引用

页码：1296 / 1299

页数：4

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