Synthetic-aperture radar (SAR) is a form of radar which is used to create images of an object, such as a landscape. SAR uses the motion of the SAR antenna over a target region to provide finer spatial resolution than is possible with conventional beam-scanning radars. SAR is typically mounted on a moving platform such as an aircraft or spacecraft,...
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http://en.wikipedia.org/wiki/Synthetic_aperture_radar
A radar imaging instrument which provides a penetrating illumination of radio waves, and is capable of imaging surfaces covered by clouds and haze. SAR images are constructed of a matrix where lines of constant distance or range intersect with lines of constant Doppler shift.
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http://www.braeunig.us/space/glossary.htm
(from the article `Earth Sciences`) ...crust. Applications included the study of volcanoes, active faults, landslides, oil fields, and glaciers. The technique that was used, called ... Cross-range resolution obtained from Doppler frequency, along with range resolution, is the basis for synthetic aperture radar (SAR). SAR produces an ......
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http://www.britannica.com/eb/a-z/s/201
(SAR) A high-resolution radar instrument capable of imaging surfaces covered by clouds and haze and used for ground-mapping. Synthetic aperture radar (SAR) images consist of a matrix in which lines of constant distance or range intersect with lines of constant Doppler shift...
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http://www.daviddarling.info/encyclopedia/S/SAR.html
side-looking radar in which spatial resolution in the direction of the route of the vehicle is improved by a special processing of the back scattered signal NOTE - Signal processing is mainly the superposition of the successive echoes from the same point identified by Doppler effect.
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http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=713-04-21
SAR is a side-looking imaging system that uses the Doppler effect to sharpen the effective resolution in the cross-track direction.
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http://www.solarviews.com/eng/terms.htm
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