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Chirp Selection and Data Compression for Spaceborne Wide-Swath SAR in FScan-Mode

Scheiber, Rolf and Martone, Michele and Gollin, Nicola (2021) Chirp Selection and Data Compression for Spaceborne Wide-Swath SAR in FScan-Mode. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR. VDE. European Conference on Synthetic Aperture Radar (EUSAR), 2021-03-29 - 2021-04-01, Leipzig, Germany. ISSN 2197-4403.

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Abstract

FScan has recently been proposed by Airbus DS as an appealing option to implement high-resolution wide-swath (HRWS) spaceborne SAR imaging. The concept uses the fanning-out beam pointing characteristic of phased array antennas operated at high bandwidth in a favorable way to steer the beam over a much wider swath as the nominal beamwidth would correspond. This paper treats the transmit pulse chirp length as a trade-off parameter and consequentially derives two variants of the FScan modes. The consequences on echo window length and the benefits of dedicated onboard processing for data volume reduction are discussed. In this context, the advantages of using a transform domain BAQ are pointed out.

Item URL in elib:https://elib.dlr.de/141465/
Document Type:Conference or Workshop Item (Speech)
Title:Chirp Selection and Data Compression for Spaceborne Wide-Swath SAR in FScan-Mode
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Scheiber, RolfRolf.Scheiber (at) dlr.dehttps://orcid.org/0000-0002-6833-4897
Martone, MicheleMichele.Martone (at) dlr.dehttps://orcid.org/0000-0002-4601-6599
Gollin, NicolaNicola.Gollin (at) dlr.dehttps://orcid.org/0000-0003-0477-3273
Date:1 April 2021
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Publisher:VDE
ISSN:2197-4403
Status:Accepted
Keywords:frequency scanning, chirp selection, FFT-BAQ
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Leipzig, Germany
Event Type:international Conference
Event Dates:2021-03-29 - 2021-04-01
Organizer:VDE
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 - Aircraft SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > SAR Technology
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Scheiber, Dr.-Ing. Rolf
Deposited On:23 Mar 2021 12:27
Last Modified:29 Mar 2021 22:00

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