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

Advanced Spaceborne SAR Systems with Planar Antenna

Villano, Michelangelo and Krieger, Gerhard and Moreira, Alberto (2017) Advanced Spaceborne SAR Systems with Planar Antenna. In: PROCEEDINGS OF THE 1998 IEEE RADAR CONFERENCE: RADARCON 98. IEEE Radar Conference (RadarCon), 2017-05-08 - 2017-05-12, Seattle, USA.

Full text not available from this repository.

Abstract

Synthetic aperture radar (SAR) remote sensing allows high-resolution imaging independent of weather conditions and sunlight illumination and is therefore very attractive for the systematic observation of dynamic processes on the Earth’s surface. Conventional spaceborne SAR systems are, however, limited in that a wide swath can only be imaged at the expense of a degraded azimuth resolution. This limitation can be overcome by using SAR systems with multiple receive subapertures displaced in along-track, ScanSAR systems with multiple azimuth channels, or multiple elevation beam SAR systems, which use digital beamforming (DBF) on receive for simultaneous mapping of multiple subswaths. In the latter case, a combined transmit-receive planar phased array antenna can be employed, using phase-only tapering to form a wide transmit beam, while exploiting all the available power and ensuring the best possible efficiency of the high power transmit modules. A parametric closed-form expression for the phase tapers can be analytically derived, which result in a wide transmit beam optimized for noise and ambiguity performance.

Item URL in elib:https://elib.dlr.de/112501/
Document Type:Conference or Workshop Item (Speech)
Title:Advanced Spaceborne SAR Systems with Planar Antenna
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Villano, MichelangeloUNSPECIFIEDhttps://orcid.org/0000-0002-1769-6927
Krieger, GerhardUNSPECIFIEDhttps://orcid.org/0000-0002-4548-0285
Moreira, AlbertoUNSPECIFIEDhttps://orcid.org/0000-0002-3436-9653
Date:May 2017
Journal or Publication Title:PROCEEDINGS OF THE 1998 IEEE RADAR CONFERENCE: RADARCON 98
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Status:Published
Keywords:Antenna; digital beamforming (DBF); phased array; phase-only tapering; spaceborne synthetic aperture radar (SAR)
Event Title:IEEE Radar Conference (RadarCon)
Event Location:Seattle, USA
Event Type:international Conference
Event Dates:2017-05-08 - 2017-05-12
Organizer:IEEE
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
Microwaves and Radar Institute > Radar Concepts
Deposited By: Villano, Dr.-Ing. Michelangelo
Deposited On:01 Jun 2017 16:21
Last Modified:05 Feb 2018 17:23

Repository Staff Only: item control page

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