Synthetic aperture radar

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Synthetic aperture radar is a form of radar that is used to create images of objects, such as landscapes – these images can be either two or three dimensional representations of the object.SAR uses the motion of the radar antenna over a targeted 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, and has its origins in an advanced form of side-looking airborne radar .The distance the SAR device travels over a target in the time taken for the radar pulses to return to the antenna creates the large "synthetic" antenna aperture .

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