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Concepts and technologies for synthetic aperture radar from MEO and geosynchronous orbits

Show simple item record Edelstein, Wendy N. Madsen, Soren Moussessian, Alina Chen, Curtis 2007-11-30T19:25:31Z 2007-11-30T19:25:31Z 2004-11-08
dc.identifier.citation SPIE Remote Sensing Symposium, Honolulu, Hawaii, November 8-12, 2004. en
dc.identifier.clearanceno 04-3397
dc.description.abstract The area accessible from a spaceborne imaging radar, e.g. a synthetic aperture radar (SAR), generally increases with the elevation of the satellite while the map coverage rate is a more complicated function of platform velocity and beam agility. The coverage of a low Earth orbit (LEO) satellite is basically given by the fast ground velocity times the relatively narrow swath width. The instantaneously accessible area will be limited to some hundreds of kilometers away from the sub-satellite point. In the other extreme, the sub-satellite point of a SAR in geosynchronous orbit will move relatively slowly, while the area which can be accessed at any given time is very large, reaching thousands of kilometers from the subsatellite point. To effective1y use the accessibility provided by a high vantage point, very large antennas with electronically steered beams are required. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 1080595 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004. en
dc.subject synthetic aperture radar (SAR) en
dc.subject spaceborne interferometric SAR (InSAR) , en
dc.subject geosynchronous en
dc.subject medium Earth orbits (MEG) en
dc.subject SAR constellation en
dc.title Concepts and technologies for synthetic aperture radar from MEO and geosynchronous orbits en
dc.type Preprint en

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