Spaceborne MIMO Synthetic Aperture Radar for Multimodal Operation

被引：71

作者：

Kim, Jung-Hyo ^{[1
]}

Younis, Marwan ^{[2
]}

Moreira, Alberto ^{[2
,3
]}

Wiesbeck, Werner ^{[4
]}

机构：

[1] Airbus Def & Space, D-88039 Friedrichshafen, Germany

[2] German Aerosp Ctr DLR, Microwaves & Radar Inst, D-83224 Oberpfaffenhofen, Wessling, Germany

[3] Karlsruhe Inst Technol, D-76131 Karlsruhe, Germany

[4] Karlsruhe Inst Technol, Inst High Frequency Tech & Elect, D-76049 Karlsruhe, Germany

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2015年 / 53卷 / 05期

关键词：

Digital beamforming (DBF); high-resolution wide swath (HRWS); multichannel synthetic aperture radar (SAR) processing; multiple-input multiple-output (MIMO); orthogonal frequency division multiplexing (OFDM) waveform; reconfigurable SAR system; SAR; SAR; RESOLUTION; SYSTEM;

D O I：

10.1109/TGRS.2014.2360148

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：

In this paper, we introduce a novel multiple-input multiple-output (MIMO) synthetic aperture radar (SAR) concept for multimodal operation. The proposed system employs waveforms based on the orthogonal frequency division multiplexing (OFDM) technique and digital beamforming (DBF) on receive. Thereby, it becomes feasible to maximize spatial degrees of freedom, which are necessary for the multimodal operation. The proposed MIMO SAR system produces multiple high-resolution wide-swath SAR imageries that are used for coherent postprocessing. Through this paper, we aim to open up a new perspective of using MIMO concept for a wide-swath SAR imaging with high resolution in interferometric and polarimetric modes, based on OFDM and DBF techniques. Therefore, this paper encompasses broad theoretical backgrounds and general system design issues as well as specific signal processing techniques and aspects.

引用

页码：2453 / 2466

页数：14

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