Passive multi-static SAR with GNSS transmitters: First theoretical and experimental results with point targets

Research output: Chapter in Book/Report/Conference proceedingConference contribution


  • Fabrizio Santi
  • Debora Pastina
  • Marta Bucciarelli

Colleges, School and Institutes

External organisations

  • University of Rome La Sapienza


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.


Original languageEnglish
Title of host publicationProceedings of 10th European Conference on Synthetic Aperture Radar, EUSAR 2014
Publication statusPublished - Jun 2014