On the Processing of Very High Resolution Spaceborne SAR Data

被引：117

作者：

Prats-Iraola, Pau ^{[1
]}

Scheiber, Rolf ^{[1
]}

Rodriguez-Cassola, Marc ^{[1
]}

Mittermayer, Josef ^{[1
]}

Wollstadt, Steffen ^{[1
]}

De Zan, Francesco ^{[1
]}

Braeutigam, Benjamin ^{[1
]}

Schwerdt, Marco ^{[1
]}

Reigber, Andreas ^{[1
]}

Moreira, Alberto ^{[1
]}

机构：

[1] German Aerosp Ctr DLR, Microwaves & Radar Inst, D-82234 Wessling, Germany

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2014年 / 52卷 / 10期

关键词：

SAR processing; spotlight SAR; stop-and-go approximation; synthetic aperture radar (SAR); troposphere; DEPENDENT MOTION COMPENSATION; AIRBORNE SAR; ALGORITHM;

D O I：

10.1109/TGRS.2013.2294353

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：

This paper addresses several important aspects that need to be considered for the processing of spaceborne synthetic aperture radar (SAR) data with resolutions in the decimeter range. In particular, it will be shown how the motion of the satellite during the transmission/reception of the chirp signal and the effect of the troposphere deteriorate the impulse response function if not properly considered. Further aspects that have been investigated include the curved orbit, the array pattern for electronically steered antennas, and several considerations within the processing itself. For each aspect, a solution is proposed, and the complete focusing methodology is expounded and validated using simulated point targets and staring spotlight data acquired by TerraSAR-X with 16-cm azimuth resolution and 300-MHz range bandwidth.

引用

页码：6003 / 6016

页数：14

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