DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Advances in Onboard Data Reduction Methods for Next-Generation Synthetic Aperture Radar Systems

Martone, Michele and Gollin, Nicola and Rizzoli, Paola and Villano, Michelangelo and Younis, Marwan and Krieger, Gerhard (2019) Advances in Onboard Data Reduction Methods for Next-Generation Synthetic Aperture Radar Systems. In: 20th International Radar Symposium, IRS 2019. International Radar Symposium (IRS), 2019-06-26 - 2019-06-28, Ulm, Germany. doi: 10.23919/IRS.2019.8768153.

Full text not available from this repository.


For present and future spaceborne synthetic aperture radar (SAR) missions, an increasing volume of onboard data is going to be required, due to the employment of large bandwidths, multiple polarizations, and large swath widths, which lead to hard requirements in terms of onboard memory and downlink capacity. This paper presents novel methods for data volume reduction in the context of multi-azimuth channel (MAC) SAR and staggered SAR, which allow for high-resolution imaging of a wide swath by means of different system architectures. In particular, for such systems, a pulse repetition frequency (PRF) typically higher than the processed Doppler bandwidth is selected. The resulting oversampling and correlation properties of the azimuth SAR raw signal can be exploited by applying an efficient encoding and quantization of the SAR raw data in order to reduce the onboard volume of data. Simulation results show that the proposed methods allow for a significant reduction of the data volume to be downlinked to the ground at the cost of a modest increase of onboard computational effort.

Item URL in elib:https://elib.dlr.de/126687/
Document Type:Conference or Workshop Item (Speech)
Title:Advances in Onboard Data Reduction Methods for Next-Generation Synthetic Aperture Radar Systems
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
Villano, MichelangeloUNSPECIFIEDhttps://orcid.org/0000-0002-1769-6927UNSPECIFIED
Younis, MarwanUNSPECIFIEDhttps://orcid.org/0000-0002-8563-7371UNSPECIFIED
Krieger, GerhardUNSPECIFIEDhttps://orcid.org/0000-0002-4548-0285UNSPECIFIED
Journal or Publication Title:20th International Radar Symposium, IRS 2019
Refereed publication:Yes
Open Access:No
In ISI Web of Science:No
Keywords:Multi-Channel Synthetic Aperture Radar (SAR), Staggered SAR, Data Reduction, Quantization
Event Title:International Radar Symposium (IRS)
Event Location:Ulm, Germany
Event Type:international Conference
Event Dates:2019-06-26 - 2019-06-28
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 > Spaceborne SAR Systems
Microwaves and Radar Institute > Radar Concepts
Deposited By: Martone, Michele
Deposited On:04 Mar 2019 10:25
Last Modified:19 Jul 2023 13:15

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.