A New Approach for Reconfigurable SAR System using Space-Time Coding

Konferenz: EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar
02.06.2008 - 05.06.2008 in Friedrichshafen, Germany

Tagungsband: EUSAR 2008

Seiten: 4Sprache: EnglischTyp: PDF

Persönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt

Kim, Junghyo; Fügen, Thomas; Wiesbeck, Werner (Institut für Höchstfrequenztechnik und Elektronik, University of Karlsruhe, Germany)

In this paper, a novel system concept for Synthetic Aperture Radar (SAR) is introduced. Using the fact that a multiple apertures system provides a diversity gain or array gain depending on the constellation, a multiple-input multiple-output (MIMO) concept is applied to SAR. In this paper, with a simple transmit diversity technique; well known as Alamouti scheme, the performance is investigated from a system point of view. In addition the complete processing combined with digital beamforming (DBF) compensates the restricted observation swath due to multiple code transmission and enhances the signal-to-noise ratio (SNR). As a consequence, use of spacetime code (STC) scheme with a MIMO constellation shows high potential to realize a multipurpose SAR.