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Synthetic Aperture Weather Radar

Ghaemi, Hirad (2008) Synthetic Aperture Weather Radar. Master's, Chalmers University, Göteborg, Sweden.

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Abstract

The work, sponsored by SELEX-GEMATRONIK, focuses on the implementation of aperture synthesis for ground-based coherent radars. Such systems can take advantage of the circular trajectory of the antenna phase centre to synthesize an antenna aperture useful for resolution improvement. The performance of azimuth compression algorithms is analysed in detail for the case of radar meteorological targets (precipitation and clutter). Advanced array signal processing techniques for obtaining super-resolution imaging of coherent targets are also investigated. A quite unique experimental setup allowed the comparison between two ground-based SAR systems with regards to resolution of coherent (clutter) and partially coherent (precipitation) targets. Doppler velocity and spectral width estimation, as well as accuracy of reflectivity measurements are also addressed.

Document Type:Thesis (Master's)
Additional Information:Supervisors: Prof. Mats Viberg (Chalmers University) Dr. Frank Gekat (Selex-SI Gematronik) Michele Galletti (DLR) Dr. Thomas Börner (DLR)
Title:Synthetic Aperture Weather Radar
Authors:
AuthorsInstitution or Email of Authors
Ghaemi, HiradUNSPECIFIED
Date:June 2008
Refereed publication:No
Number of Pages:78
Status:Published
Keywords:PSAR, CSAR, rotating SAR, Doppler weather radar, super-resolution, clutter, precipitation
Institution:Chalmers University, Göteborg, Sweden
Department:Department of Signals and Systems
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 SAR-Expert-Support-Lab (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Deposited By: Hirad Ghaemi
Deposited On:02 Jul 2008
Last Modified:12 Dec 2013 20:31

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