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VHF/UHF bistatic and passive SAR ground imaging

Lars M. H. Ulander (Institutionen för rymd- och geovetenskap, Radarfjärranalys) ; P. O. Frölind ; A. Gustavsson ; R. Ragnarsson ; G. Stenström
IEEE National Radar Conference - Proceedings (1097-5659). Vol. 2015-June (2015), June, p. 669-673.
[Konferensbidrag, refereegranskat]

Bistatic and passive radar are emerging technologies for covert ground surveillance based on cooperative or non-cooperative transmitters, respectively. The latter uses transmitters of opportunity, e.g. terrestrial digital video broadcasting (DVB-T). In the paper, we show results from two unique experiments conducted using airborne systems operating in the VHF and UHF bands. The first experiment investigates UHF-band passive synthetic aperture radar (SAR) in receive-only mode. DVB-T signals transmitted from a 300-m tall mast are used and SAR images are formed at ranges up to 15 km. The second experiment investigates VHF-band bistatic SAR with a transmitting airborne radar and a receive-only system on a small helicopter. Results show significantly higher signal-to-clutter ratio for man-made objects in forested areas at bistatic elevation angles of 20°. © 2015 IEEE.

Nyckelord: backprojection, bistatic, DVB-T, passive, SAR, surveillance, UHF-band, VHF-band



Denna post skapades 2015-08-24. Senast ändrad 2016-05-24.
CPL Pubid: 221104

 

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Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Radarfjärranalys (2010-2017)

Ämnesområden

Signalbehandling

Chalmers infrastruktur