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Matrix Pencil Method for Topography-Adaptive Digital Beam-Forming in Synthetic Aperture Radar

Rommel, Tobias and Huber, Sigurd and Younis, Marwan and Chandra, Madhu (2021) Matrix Pencil Method for Topography-Adaptive Digital Beam-Forming in Synthetic Aperture Radar. IET Radar, Sonar & Navigation. Institution of Engineering and Technology (IET). ISSN 1751-8784.

Full text not available from this repository.

Abstract

Spaceborne Synthetic Aperture Radar (SAR) with Digital Beam-Forming (DBF) in elevation uses very sharp time-variant antenna beams to increase the Signal-to-Noise Ratio (SNR) and the Range Ambiguity to Signal Ratio (RASR). However, in acquisition scenarios of imprecisely known Earth topography the antenna pointing might be mismatched with the surface geometry. To handle this issue, it is suggested to apply pre-processing to DBF, which determines the angle of the incident echo signal on the planar antenna array. In this paper an innovative method is derived, which estimates the direction of arrival on the acquired raw-data with high accuracy and in real-time. The method is based on the matrix pencil, which is a common approach in mathematics for solving linear equation systems. As a key innovation this paper describes further improvements and adaptions to SAR scenarios and gives a possible concept of practical implementation. For proof of concept a series of different simulation tasks is performed.

Item URL in elib:https://elib.dlr.de/141462/
Document Type:Article
Title:Matrix Pencil Method for Topography-Adaptive Digital Beam-Forming in Synthetic Aperture Radar
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Rommel, TobiasTobias.Rommel (at) dlr.dehttps://orcid.org/0000-0003-1864-7585
Huber, SigurdSigurd.Huber (at) dlr.dehttps://orcid.org/0000-0001-7097-5127
Younis, Marwanmarwan.younis (at) dlr.dehttps://orcid.org/0000-0002-8563-7371
Chandra, MadhuTUC, Technical University of ChemnitzUNSPECIFIED
Date:2021
Journal or Publication Title:IET Radar, Sonar & Navigation
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Publisher:Institution of Engineering and Technology (IET)
ISSN:1751-8784
Status:Accepted
Keywords:SAR, synthetic aperture radar, DBF, digital beam-forming, topography, SCORE, AoA, DoA, matrix pencil
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 > SAR Technology
Deposited By: Rommel, Tobias
Deposited On:23 Mar 2021 12:18
Last Modified:23 Mar 2021 12:18

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