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The SAR/GMTI airborne radar PAMIR: Technology and performance

: Wilden, H.; Brenner, A.R.


IEEE Microwave Theory and Techniques Society:
IEEE MTT-S International Microwave Symposium, IMS 2010 : May 23-28, 2010, Anaheim, California
Piscataway/NJ: IEEE, 2010
ISBN: 978-1-4244-6056-4
ISBN: 1-4244-6056-5
ISBN: 978-1-4244-6057-1
ISBN: 978-1-4244-7732-6
International Microwave Symposium (IMS) <2010, Anaheim/Calif.>
Fraunhofer FHR

PAMIR, a multifunctional SAR/GMTI imaging radar, combines the tremendous research potential of an experimental active broadband phased array system with the wide area of imaging procedures of mono-and bistatic systems. With its two different reconfigurable antenna front-end configurations operating a very high simultaneous bandwidth of 1.8 GHz in X-band, a variety of controversal requirements can be investigated and experimentally explored. The broadband beam forming together with azimuth wide scan capabilities (± 45°@1.8 GHz bandwidth of the antenna aperture) requires a switchable true time delay network with time increments equivalent to a fraction of a wavelength. The subarray structure including its time delay components are described. PAMIR serves as an ideal airborne platform for broadband SAR/GMTI research activities including interferometric image formation.