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Multi-Channel Azimuth Processing in SAR - Airborne Measured Data Demonstration and Analysis

Almeida, Felipe (2009) Multi-Channel Azimuth Processing in SAR - Airborne Measured Data Demonstration and Analysis. Diploma, Instituto Tecnologico de Aeronautica (ITA), Sao Jose dos Campos, Brazil.

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Abstract

Synthetic Aperture Radar (SAR) is a well-proven imaging technique for remote sensing. However, conventional SAR systems are not capable to fulfil the increasing demands for both improved spatial resolution and wider swath coverage. This inherent limitation can be overcome by multi-channel SAR systems, which gather additional information along the synthetic aperture, thus enabling high-resolution wide-swath (HRWS) imaging. In this context an innovative algorithm, namely the Multi-Channel Reconstruction Algorithm (MCRA), was introduced, which allows for the processing of multi-channel data in azimuth. The presented work demonstrates the potential of this algorithm by its application to airborne measured multi-channel SAR X-band data, which were acquired by DLR’s F-SAR system. In a proof-of-principle, the combination of up to 4 different channels is presented. In this context, the impact of different channel balancing methods on the system performance will be evaluated. Furthermore, a performance analysis of the algorithm will be presented, especially with regard to its capability of suppressing azimuth ambiguities. Finally, the validity of the analytic prediction will be verified with the measured data.

Document Type:Thesis (Diploma)
Title:Multi-Channel Azimuth Processing in SAR - Airborne Measured Data Demonstration and Analysis
Authors:
AuthorsInstitution or Email of Authors
Almeida, FelipeUNSPECIFIED
Date:2009
Refereed publication:No
In Open Access:Yes
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:187
Editors:
EditorsEmail
IEEE, UNSPECIFIED
Status:Published
Keywords:Multi-channel azimuth processing, high-resolution wide-swath SAR imaging, airborne measured data, F-SAR
Institution:Instituto Tecnologico de Aeronautica (ITA), Sao Jose dos Campos, Brazil
Department:Divisao de Engenharia Eletronica
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Entwicklung eines Mini-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Deposited By: Nicolas Gebert
Deposited On:31 Mar 2009
Last Modified:18 Jan 2010 18:29

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