Queiroz de Almeida, Felipe and Younis, Marwan and Krieger, Gerhard and Moreira, Alberto (2018) An Analytical Error Model for Spaceborne SAR Multichannel Azimuth Reconstruction. IEEE Geoscience and Remote Sensing Letters. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/LGRS.2018.2811786. ISSN 1545-598X.
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Abstract
In the context of spaceborne synthetic aperture radar (SAR) for remote sensing, multichannel system architectures coupled with digital beamforming techniques are deemed a necessary technological advancement to fulfill the requirements for near-future spaceborne radar missions. Calibration of such systems is an important topic, since channel imbalances may lead to considerable degradation of their performance. This letter analyzes the impact of residual errors in a SAR system with multiple channels in azimuth and derives an analytical model for the resulting performance degradation, which may be used in system design as an aid to establish requirements in an error budget analysis.
Item URL in elib: | https://elib.dlr.de/119500/ | ||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||
Title: | An Analytical Error Model for Spaceborne SAR Multichannel Azimuth Reconstruction | ||||||||||||||||||||
Authors: |
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Date: | March 2018 | ||||||||||||||||||||
Journal or Publication Title: | IEEE Geoscience and Remote Sensing Letters | ||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||
DOI: | 10.1109/LGRS.2018.2811786 | ||||||||||||||||||||
Publisher: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||||||||||
ISSN: | 1545-598X | ||||||||||||||||||||
Status: | Published | ||||||||||||||||||||
Keywords: | Channel imbalances, digital beamforming (DBF), error modeling, high-resolution wide swath, multichannel SAR, spaceborne radar, synthetic aperture radar (SAR). | ||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||
HGF - Program Themes: | Earth Observation | ||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||
DLR - Program: | R EO - Earth Observation | ||||||||||||||||||||
DLR - Research theme (Project): | R - Vorhaben Tandem-L Vorstudien (old) | ||||||||||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||||||||||
Institutes and Institutions: | Microwaves and Radar Institute > Radar Concepts | ||||||||||||||||||||
Deposited By: | Queiroz de Almeida, Felipe | ||||||||||||||||||||
Deposited On: | 28 Mar 2018 16:06 | ||||||||||||||||||||
Last Modified: | 08 Nov 2023 14:40 |
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