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Sky Research has developed SkySAR, a fully-polarimetric synthetic aperture radar (SAR) system based on the DoD FOLPEN III system from the Naval Surface Warfare Center, Dahlgren Division. SAR technology measures round trip travel time and strength of pulsed microwave signals emitted by a radar antenna and reflected off a distant surface or object. An image is built as pulses are emitted, returned, and recorded along the flight line of the aircraft.
SAR data can be processed in several ways, yielding different data products. Single polarization data is used to create 2D images while multiple polarization data allows more detailed discrimination of various surface types or targets. SAR is virtually unaffected by cloud cover or changes in solar illumination.
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