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Frequency Scan for Time-of-Echo Compression in SAR Systems

Younis, Marwan and Queiroz de Almeida, Felipe and Villano, Michelangelo and Bollian, Tobias and Krieger, Gerhard and Moreira, Alberto (2021) Frequency Scan for Time-of-Echo Compression in SAR Systems. In: International Geoscience and Remote Sensing Symposium (IGARSS). IEEE. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), virtual. doi: 10.1109/IGARSS47720.2021.9554057.

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Official URL: https://igarss2021.org/


The development of synthetic aperture radar (SAR) instruments at higher carrier frequency is motivated, among others, by the relative wavelength scaling, which provides an increased bandwidth and reduced physical dimensions of the RF hardware, for the same coverage. The later causes a reduced area and a high length-to-height aspect ratio of the antenna, which is unfavorable, since the resulting design compromise leads to systems of small swath width and low signal-to-noise ratio. The frequency Scan for Time-of-Echo Compression (STEC) technique described in this paper is known from \cite{Roemer18, FScan_PatentUS, Nan2020} and utilizes the available bandwidth to form a narrow frequency-scanning antenna beam illuminating the swath of interest from far to near range. The operation parameters of the technique may be chosen to significantly reduce the pulse echo duration which may be used to significantly increase the transmit pulse duty cycle over what is common for SAR instruments allowing for a lower peak-to-average transmitted power ratio.

Item URL in elib:https://elib.dlr.de/146765/
Document Type:Conference or Workshop Item (Speech)
Title:Frequency Scan for Time-of-Echo Compression in SAR Systems
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Younis, MarwanUNSPECIFIEDhttps://orcid.org/0000-0002-8563-7371UNSPECIFIED
Queiroz de Almeida, FelipeUNSPECIFIEDhttps://orcid.org/0000-0001-5929-6633UNSPECIFIED
Villano, MichelangeloUNSPECIFIEDhttps://orcid.org/0000-0002-1769-6927UNSPECIFIED
Bollian, TobiasUNSPECIFIEDhttps://orcid.org/0000-0003-4653-7930UNSPECIFIED
Krieger, GerhardUNSPECIFIEDhttps://orcid.org/0000-0002-4548-0285UNSPECIFIED
Moreira, AlbertoUNSPECIFIEDhttps://orcid.org/0000-0002-3436-9653UNSPECIFIED
Date:28 July 2021
Journal or Publication Title:International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:SAR, frequency scanning
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:virtual
Event Type:international Conference
Organizer:IEEE GRSS
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 - Development of a mini-SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Younis, Dr.-Ing. Marwan
Deposited On:05 Dec 2021 14:08
Last Modified:17 Jul 2023 12:56

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