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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. ISSN 2197-4403.

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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
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Villano, MichelangeloUNSPECIFIEDhttps://orcid.org/0000-0002-1769-6927UNSPECIFIED
Krieger, GerhardUNSPECIFIEDhttps://orcid.org/0000-0002-4548-0285UNSPECIFIED
Moreira, AlbertoUNSPECIFIEDhttps://orcid.org/0000-0002-3436-9653UNSPECIFIED
Rosen, PaulJet Propulsion Laboratory (JPL)UNSPECIFIEDUNSPECIFIED
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 ISI Web of Science:No
Keywords:SAR, NISAR, staggered SAR.
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Aachen, Germany
Event Type:international Conference
Event Start Date:4 June 2018
Event End Date:7 June 2018
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
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:24 Apr 2024 20:23

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