Schwarz, Andreas (2009) Entwicklung und Analyse von Methoden zur adaptiven Redundanzreduktion in mehrkanaligen Radarsystemen. DLR-Interner Bericht. Diploma. Lehrstuhl für Hochfrequenztechnik. 96 S.
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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.
Item URL in elib: | https://elib.dlr.de/62149/ | ||||||
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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: |
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Date: | 1 December 2009 | ||||||
Refereed publication: | No | ||||||
Open Access: | No | ||||||
Gold Open Access: | 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: | Younis, Dr.-Ing. Marwan | ||||||
Deposited On: | 28 Dec 2009 23:11 | ||||||
Last Modified: | 28 Dec 2009 23:11 |
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