Spaceborne MIMO Synthetic Aperture Radar for Multimodal Operation

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,...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on geoscience and remote sensing 2015-05, Vol.53 (5), p.2453-2466
Main Authors: Kim, Jung-Hyo, Younis, Marwan, Moreira, Alberto, Wiesbeck, Werner
Format: Article
Language:English
Subjects:
Antennas
Azimuth
Chirp
Coherence
Degrees of freedom
Digital
Digital beamforming (DBF)
Doppler effect
high-resolution wide swath (HRWS)
Mathematical analysis
MIMO
multichannel synthetic aperture radar (SAR) processing
multiple-input multiple-output (MIMO)
OFDM
Orthogonal Frequency Division Multiplexing
orthogonal frequency division multiplexing (OFDM) waveform
reconfigurable SAR system
SAR
Signal processing
Synthetic aperture radar
Systems design
Waveforms
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0196-2892
1558-0644
DOI:10.1109/TGRS.2014.2360148