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Performance-Optimized Quantization for InSAR Applications

Martone, Michele and Gollin, Nicola and Rizzoli, Paola and Krieger, Gerhard (2020) Performance-Optimized Quantization for InSAR Applications. European Conference on Synthetic Aperture Radar (EUSAR), 2020-06-15 - 2010-06-18, Leipzig, Germany.

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Abstract

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
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Martone, MicheleMichele.Martone (at) dlr.dehttps://orcid.org/0000-0002-4601-6599
Gollin, NicolaNicola.Gollin (at) dlr.dehttps://orcid.org/0000-0003-0477-3273
Rizzoli, PaolaPaola.Rizzoli (at) dlr.dehttps://orcid.org/0000-0001-9118-2732
Krieger, GerhardGerhard.Krieger (at) dlr.dehttps://orcid.org/0000-0002-4548-0285
Date:2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-6
Status:Accepted
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 Dates:2020-06-15 - 2010-06-18
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 - Projekt TanDEM-X
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:27 Feb 2020 16:22

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