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Multiple-Input Multiple-Output Circular SAR

Ponce, Octavio and Rommel, Tobias and Younis, Marwan and Prats, Pau and Moreira, Alberto (2014) Multiple-Input Multiple-Output Circular SAR. In: Proceedings of the International Radar Symposium. IEEE. International Radar Symposium (IRS), 2014-06-16 - 2014-06-18, Gdansk, Poland.

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Abstract

Interest on circular and multicircular SAR acquisitions has been increased in the past few years due to the inherent potentials they provide, e.g., full 3-D reconstruction and subwavelength resolution. However, one main limitation is the size of the spotlighted region, which is basically defined by the range ambiguities, the pulse repetition frequency (PRF), and the minimum half-power beamwidth (HPBW) in the range and azimuth directions. This paper introduces multiple-input multiple-output (MIMO) techniques in order to tackle this limitation, thereby being able to extend the applications of CSAR to much wider areas. The basic principle of the proposed solution is based on three methods, namely scan-on-receive (SCORE), multi-channel reconstruction in azimuth (MCRA) and the use of orthogonal waveforms for quad-polarized systems. The impact and dependency of the PRF, HPBW and the range ambiguities is also investigated.

Item URL in elib:https://elib.dlr.de/88921/
Document Type:Conference or Workshop Item (Speech)
Title:Multiple-Input Multiple-Output Circular SAR
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ponce, OctavioUNSPECIFIEDUNSPECIFIED
Rommel, TobiasUNSPECIFIEDUNSPECIFIED
Younis, MarwanUNSPECIFIEDUNSPECIFIED
Prats, PauUNSPECIFIEDUNSPECIFIED
Moreira, AlbertoUNSPECIFIEDUNSPECIFIED
Date:2014
Journal or Publication Title:Proceedings of the International Radar Symposium
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:IEEE
Status:Published
Keywords:Circular SAR, digital beam forming (DBF), multicircular SAR, multiple-input multiple-output (MIMO), synthetic aperture radar (SAR)
Event Title:International Radar Symposium (IRS)
Event Location:Gdansk, Poland
Event Type:international Conference
Event Dates:2014-06-16 - 2014-06-18
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 - Vorhaben Flugzeug-SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > SAR Technology
Microwaves and Radar Institute > Radar Concepts
Deposited By: Ponce Madrigal, Octavio
Deposited On:25 Apr 2014 13:02
Last Modified:23 Jan 2015 09:20

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