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Matrix Pencil Method for Direction of Arrival Estimation in DBF-SAR

Rommel, Tobias and Younis, Marwan (2016) Matrix Pencil Method for Direction of Arrival Estimation in DBF-SAR. VDE VERLAG GMBH. European Conference on Synthetic Aperture Radar (EUSAR), 2016-06-06 - 2016-06-09, Hamburg, Germany.

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Abstract

Synthetic Aperture Radar (SAR) satellites with Digital Beam-Forming (DBF) on receive form a narrow synthesized antenna beam, which traces the echo signal travelling along the Earth’s surface. This can be achieved by using the known geometrical relation between radar and ground. However, in presence of topography, this geometrical relation is distorted with reference to a spherical Earth model and the resulting mis-pointing of the antenna will lead to a loss of gain. As solution, this paper introduces an algorithm, which estimates the angle of the arriving echo signal before DBF in real-time with high accuracy to enable topography adaptive DBF. Especially for SAR, this matrix pencil method outperforms the results achieved with existing spectral estimation algorithms, such as MUSIC or ESPRIT.

Item URL in elib:https://elib.dlr.de/103146/
Document Type:Conference or Workshop Item (Speech)
Title:Matrix Pencil Method for Direction of Arrival Estimation in DBF-SAR
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Rommel, TobiasUNSPECIFIEDUNSPECIFIED
Younis, MarwanUNSPECIFIEDUNSPECIFIED
Date:6 June 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:VDE VERLAG GMBH
Status:Published
Keywords:adaptive digital beam-forming, synthetic aperture radar, topography
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Hamburg, Germany
Event Type:international Conference
Event Dates:2016-06-06 - 2016-06-09
Organizer:VDE
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 Entwicklung eines Mini-SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Rommel, Tobias
Deposited On:19 Feb 2016 11:05
Last Modified:25 Aug 2016 10:41

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