Martone, Michele and Villano, Michelangelo and Younis, Marwan and Krieger, Gerhard (2018) An Efficient Onboard Quantization Strategy for Multi-Channel SAR Systems. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR, pp. 1-6. European Conference on Synthetic Aperture Radar (EUSAR), 2018-06-04 - 2018-06-07, Aachen, Deutschland. ISSN 2197-4403.
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Abstract
Multi-channel SAR systems allow high-resolution Imaging of a wide swath and represent an attractive solution for present and next-generation SAR mission concepts. However, their operation requires the downlink of a huge amount of data: in addition to the intrinsic data equirement related to resolution and swath, in fact, a pulse repetition frequency (PRF) higher than the processed Doppler bandwidth is usually selected. A convenient data reduction strategy is therefore proposed, which exploits the correlation between samples by performing variable-bit quantization of the data after a block transformation of the multichannel SAR data, e.g., an FFT. Simulations show that this allows reducing the data volume while keeping the same performance at the cost of a modest onboard processing effort.
Item URL in elib: | https://elib.dlr.de/119644/ | |||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | |||||||||||||||
Title: | An Efficient Onboard Quantization Strategy for Multi-Channel SAR Systems | |||||||||||||||
Authors: |
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Date: | 2018 | |||||||||||||||
Journal or Publication Title: | Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR | |||||||||||||||
Refereed publication: | Yes | |||||||||||||||
Open Access: | Yes | |||||||||||||||
Gold Open Access: | No | |||||||||||||||
In SCOPUS: | Yes | |||||||||||||||
In ISI Web of Science: | No | |||||||||||||||
Page Range: | pp. 1-6 | |||||||||||||||
ISSN: | 2197-4403 | |||||||||||||||
Status: | Published | |||||||||||||||
Keywords: | Multichannel Synthetic Aperture Radar (SAR), Quantization, Data Reduction | |||||||||||||||
Event Title: | European Conference on Synthetic Aperture Radar (EUSAR) | |||||||||||||||
Event Location: | Aachen, Deutschland | |||||||||||||||
Event Type: | international Conference | |||||||||||||||
Event Dates: | 2018-06-04 - 2018-06-07 | |||||||||||||||
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 > Spaceborne SAR Systems Microwaves and Radar Institute > Radar Concepts | |||||||||||||||
Deposited By: | Martone, Michele | |||||||||||||||
Deposited On: | 12 Apr 2018 09:22 | |||||||||||||||
Last Modified: | 24 Feb 2022 17:17 |
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