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ANSAS- A Low Frequency Imaging Spectrometre using Aperture Synthesis

Jirousek, Matthias and Peichl, Markus and Süß, Helmut (2009) ANSAS- A Low Frequency Imaging Spectrometre using Aperture Synthesis. In: German Microwave Conference 2009. GeMiC 2009, 2009-03-16 - 2009-03-218, München.

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Abstract

The system development of DLR’s ANSAS (Abbil¬dendes Niederfrequenz-Spektrometer mit Apertursynthese) offers the combination of high-resolution aperture synthesis imaging with spectral sensing. The aperture synthesis principal can produce a high resolution snapshot image with a highly thinned array without mechanical movement of an antenna system. The frequency range of 1.4 to 7 GHz allows a high penetration depth in order to extract information about the surface and material of observed objects. Another advantage of that combination, i.e. a higher spatial resolution at higher frequencies and a higher penetration at lower frequencies, can enhance the overall imaging capability using combined processing for the image reconstruction. In this paper the experimental system ANSAS is presented, the setup and receiver assembly is outlined, and some imaging results using the developed electronics on a two-element interferometer showing the capabilities of the concept are illustrated.

Document Type:Conference or Workshop Item (Speech)
Title:ANSAS- A Low Frequency Imaging Spectrometre using Aperture Synthesis
Authors:
AuthorsInstitution or Email of Authors
Jirousek, MatthiasUNSPECIFIED
Peichl, MarkusUNSPECIFIED
Süß, HelmutUNSPECIFIED
Date:16 March 2009
Journal or Publication Title:German Microwave Conference 2009
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
VDE Verlag, UNSPECIFIED
Status:Published
Keywords:aperture synthesis, radiometry, spectral-imaging, multi-frequency
Event Title:GeMiC 2009
Event Location:München
Event Type:international Conference
Event Dates:2009-03-16 - 2009-03-218
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 - Projekt sicherheitsrelevante Erdbeobachtung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Reconnaissance and Security
Deposited By: Matthias Jirousek
Deposited On:29 Mar 2009
Last Modified:27 Apr 2009 15:54

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