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Gapless Imaging with the NASA-ISRO SAR (NISAR) Mission: Challenges and Opportunities of Staggered SAR

Villano, Michelangelo and Pinheiro, Muriel and Krieger, Gerhard and Moreira, Alberto and Rosen, Paul and Hensley, Scott and Veeramachaneni, Chandini (2018) Gapless Imaging with the NASA-ISRO SAR (NISAR) Mission: Challenges and Opportunities of Staggered SAR. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR. European Conference on Synthetic Aperture Radar (EUSAR), 2018-06-04 - 2018-06-07, Aachen, Germany.

Full text not available from this repository.

Abstract

The NASA-ISRO SAR (NISAR) is a science and applications mission that will map the Earth’s surface every 12 days by using a reflector-feed system with scan-on-receive (“SweepSAR”) capability. Gapless imaging of a swath of over 240 km at fine resolution, however, requires staggered SAR operation of the radar instrument, i.e., continuous variation of the pulse repetition interval (PRI). While NISAR presents a challenge in that the system’s size is constrained by available resources, and it is planned to operate with lower pulse rate than would be optimum, interesting opportunities arise from subaperture processing and adaptive spectral estimation techniques that greatly improve the image quality at the cost of modestly more computationally intensive image processing.

Item URL in elib:https://elib.dlr.de/119287/
Document Type:Conference or Workshop Item (Speech)
Title:Gapless Imaging with the NASA-ISRO SAR (NISAR) Mission: Challenges and Opportunities of Staggered SAR
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Villano, MichelangeloMichelangelo.Villano (at) dlr.dehttps://orcid.org/0000-0002-1769-6927
Pinheiro, MurielUNSPECIFIEDUNSPECIFIED
Krieger, GerhardGerhard.Krieger (at) dlr.dehttps://orcid.org/0000-0002-4548-0285
Moreira, AlbertoAlberto.Moreira (at) dlr.dehttps://orcid.org/0000-0002-3436-9653
Rosen, PaulJet Propulsion Laboratory (JPL)UNSPECIFIED
Hensley, ScottJPL, PasadenaUNSPECIFIED
Veeramachaneni, ChandiniUNSPECIFIEDUNSPECIFIED
Date:June 2018
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
Status:Published
Keywords:SAR, NISAR, staggered SAR.
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Aachen, Germany
Event Type:international Conference
Event Dates:2018-06-04 - 2018-06-07
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 - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Tandem-L Vorstudien
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute > SAR Technology
Microwaves and Radar Institute
Deposited By: Villano, Dr.-Ing. Michelangelo
Deposited On:26 Mar 2018 09:15
Last Modified:23 Jan 2019 10:28

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