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Performance-Optimized Quantization for InSAR Applications

Martone, Michele and Gollin, Nicola and Rizzoli, Paola and Krieger, Gerhard (2021) Performance-Optimized Quantization for InSAR Applications. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR, pp. 1-6. European Conference on Synthetic Aperture Radar (EUSAR), 2021-03-29 - 2021-04-01, Leipzig, Germany. ISSN 2197-4403.

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For present and next-generation spaceborne SAR missions, an increasing volume of onboard data is going to be demanded, which implies, from the mission design point of view, more stringent requirements in terms of onboard memory and downlink capacity. In this scenario, an efficient quantization of the SAR raw data is of primary importance, since the data rate employed for raw data digitization defines the amount of data to be stored and transmitted to the ground and directly affects the performance of the resulting SAR products. In this paper, a novel performance-optimized block-adaptive quantization (PO-BAQ) is introduced. PO-BAQ exploits state-of-the-art quantization algorithms for SAR systems, and aims at optimizing the resource allocation and, at the same time, the interferometric performance in the resulting InSAR products, by exploiting a priori knowledge of the local SAR backscatter statistics. Analyses on experimental TanDEM-X interferometric data are presented. The obtained results can be combined with the precise, high-resolution knowledge of the Earth's topography and backscatter characteristics, in order to provide a helpful tool for performance budget definition and optimization of the resource allocation strategies for future SAR missions.

Item URL in elib:https://elib.dlr.de/134106/
Document Type:Conference or Workshop Item (Speech)
Title:Performance-Optimized Quantization for InSAR Applications
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Martone, MicheleUNSPECIFIEDhttps://orcid.org/0000-0002-4601-6599UNSPECIFIED
Gollin, NicolaUNSPECIFIEDhttps://orcid.org/0000-0003-0477-3273UNSPECIFIED
Rizzoli, PaolaUNSPECIFIEDhttps://orcid.org/0000-0001-9118-2732UNSPECIFIED
Krieger, GerhardUNSPECIFIEDhttps://orcid.org/0000-0002-4548-0285UNSPECIFIED
Date:April 2021
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 ISI Web of Science:No
Page Range:pp. 1-6
Keywords:Synthetic Aperture Radar (SAR), SAR Interferometry (InSAR), Quantization
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Leipzig, Germany
Event Type:international Conference
Event Start Date:29 March 2021
Event End Date:1 April 2021
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 - Projekt TanDEM-X (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:27 Feb 2020 16:22
Last Modified:24 Apr 2024 20:37

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