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An Efficient Onboard Quantization Strategy for Multi-Channel SAR Systems

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.

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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/
Document Type:Conference or Workshop Item (Speech)
Title:An Efficient Onboard Quantization Strategy for Multi-Channel SAR Systems
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Martone, MicheleMichele.Martone (at) dlr.dehttps://orcid.org/0000-0002-4601-6599
Villano, MichelangeloMichelangelo.Villano (at) dlr.dehttps://orcid.org/0000-0002-1769-6927
Younis, Marwanmarwan.younis (at) dlr.dehttps://orcid.org/0000-0002-8563-7371
Krieger, GerhardGerhard.Krieger (at) dlr.dehttps://orcid.org/0000-0002-4548-0285
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
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 - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Tandem-L Vorstudien
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:31 Jul 2019 20:17

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