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Spotlight-mode synthetic aperture radar processing for high-resolution lunar mapping

Show simple item record Harcke, Leif Weintraub, Lawrence Yun, Sang-Ho Dickinson, Richard Gurrola, Eric Hensley, Scott Marechal, Nicholas 2014-09-26T21:42:47Z 2014-09-26T21:42:47Z 2010-05-10
dc.identifier.citation 2010 IEEE National Radar Conference, Washington, DC, May 10-14, 2010 en_US
dc.identifier.clearanceno 10-0613
dc.description.abstract During the 2008–2009 year, the Goldstone Solar System Radar was upgraded to support radar mapping of the lunar poles at 4 m resolution. The finer resolution of the new system and the accompanying migration through resolution cells called for spotlight, rather than delay-Doppler, imaging techniques. A new pre-processing system supports fast-time Doppler removal and motion compensation to a point. Two spotlight imaging techniques which compensate for phase errors due to i) out of focus-plane motion of the radar and ii) local topography, have been implemented and tested. One is based on the polar format algorithm followed by a unique autofocus technique, the other is a full bistatic time-domain backprojection technique. The processing system yields imagery of the specified resolution. Products enabled by this new system include topographic mapping through radar interferometry, and change detection techniques (amplitude and coherent change) for geolocation of the NASA LCROSS mission impact site. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010 en_US
dc.subject interferometry en_US
dc.subject SAR en_US
dc.title Spotlight-mode synthetic aperture radar processing for high-resolution lunar mapping en_US
dc.type Preprint en_US

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