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Entwicklung und Analyse von Methoden zur adaptiven Redundanzreduktion in mehrkanaligen Radarsystemen

Schwarz, Andreas (2009) Entwicklung und Analyse von Methoden zur adaptiven Redundanzreduktion in mehrkanaligen Radarsystemen. Diploma. DLR-Interner Bericht.

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Abstract

The topic of this thesis is a new approach to on-board signal processing for SAR (Synthetic Aperture Radar) systems with multiple elevation channels. Multi-channel satellite SAR systems have been proposed to meet the rising demands for increased resolutions and larger imaged areas. A problem with the ractical realization of these systems is the high data rate necessary for transmission of the multi-channel data to the ground. Existing approaches for data reduction are based on digital beamforming (SCORE, Scan On Receive) and a following scalar quantization (BAQ, Block Adaptive Quantization). In this thesis, a more general, information theory-based approach called redundancy reduction is investigated, with the aim of preserving more information and allowing more flexible post-processing of the data. Transform coding is proposed as a practical implementation of redundancy reduction, and simulation results are presented.

Document Type:Monograph (DLR-Interner Bericht, Diploma)
Additional Information:Diplomarbeit Zeitraum: 11.05.2009 bis 30.11.2009 Betreuer: Marwan Younis
Title:Entwicklung und Analyse von Methoden zur adaptiven Redundanzreduktion in mehrkanaligen Radarsystemen
Authors:
AuthorsInstitution or Email of Authors
Schwarz, AndreasFriedrich-Alexander-Universität Erlangen-Nürnberg
Date:1 December 2009
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:96
Status:Published
Keywords:adaptive data processing, multi-channel radar, redundancy
Institution:Lehrstuhl für Hochfrequenztechnik
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
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Dr.-Ing. Marwan Younis
Deposited On:28 Dec 2009 23:11
Last Modified:28 Dec 2009 23:11

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