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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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/ | ||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
Title: | Performance-Optimized Quantization for InSAR Applications | ||||||||||||||||||||
Authors: |
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Date: | 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 | ||||||||||||||||||||
Page Range: | pp. 1-6 | ||||||||||||||||||||
ISSN: | 2197-4403 | ||||||||||||||||||||
Status: | Published | ||||||||||||||||||||
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: | 2021-03-29 - 2021-04-01 | ||||||||||||||||||||
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: | 30 Nov 2021 14:05 |
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