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Bistatic forward-looking SAR experiments using an airborne receiver

: Espeter, T.; Walterscheid, I.; Klare, J.; Brenner, A.R.; Ender, J.H.G.

Rohling, H. ; TU Hamburg-Harburg; Deutsche Gesellschaft für Ortung und Navigation -DGON-; Institute of Electrical and Electronics Engineers -IEEE-:
International Radar Symposium, IRS 2011. Proceedings : Leipzig, Germany, 7 - 9 September 2011
Piscataway/NJ: IEEE, 2011
ISBN: 978-1-4577-0138-2 (Print)
ISBN: 978-3-927535-28-2 (CD-ROM)
International Radar Symposium (IRS) <2011, Leipzig>
Fraunhofer FHR

Bistatic SAR experiments using a ground-based transmitter and a forward-looking airborne receiver have been conducted in June 2011. These experiments are supposed to demonstrate the suitability of forward-looking SAR for an improvement of aircrafts' landing safety in conditions of low visibility. The feasibility of airborne bistatic forward-looking SAR was already demonstrated experimentally by the authors in 2009. This paper gives a short introduction to forward-looking radar imaging, explains the problems of monostatic SAR to image in forward direction and presents and analyzes bistatic sensor configurations as a suitable solution for high resolution imaging in forward direction.