Passive multi-static SAR with GNSS transmitters: first theoretical and experimental results with point targets
Conference: EUSAR 2014 - 10th European Conference on Synthetic Aperture Radar
06/03/2014 - 06/05/2014 at Berlin, Germany
Proceedings: EUSAR 2014
Pages: 4Language: englishTyp: PDF
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Authors:
Santi, Fabrizio; Pastina, Debora; Bucciarelli, Marta (DIET Dept. University of Rome La Sapienza, Italy)
Antoniou, Michail; Tzagkas, Dimitrios; Cherniakov, Mikhail (University of Birmingham, UK)
Abstract:
This paper investigates the potential in using a passive multi-static Synthetic Aperture Radar (SAR) with Global Navigation Satellite Systems (GNSS) as transmitters of opportunity. The motivation for this research is based on the concept that a non-coherent combination between multiple bistatic images, obtained by satellites with essentially different angular separations, may yield multi-static imagery with a drastically improved resolution in the range dimension. This concept is confirmed by analytically deriving the multi-static Point Spread Function (MPSF) for this topology. The validity of the analytical results is verified with experimental data.