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A targets detection algorithm is proposed for maritime surveillance by single-channel SAR images. It foresees a preliminary prescreening step, carried out using an adaptive threshold algorithm, followed by a discrimination phase, performed by sub-look analysis. The latter discriminates the pixels detected by the former step in three classes, i.e. targets, sea, and azimuth ambiguity. The algorithm...
We extend the Direct Motion Compensation Algorithm to squinted synthetic aperture radar geometries. Numerical simulations illustrate the effectivity of the method.
It is known to all that time-domain back projection (BP) algorithm has several advantages for synthetic aperture radar (SAR) imaging[1], such as easily motion compensation for any flight track, unlimited size of the observe scene, arbitrary wide bandwidth and large integration angle. Because of the heavy computational burden of BP algorithm, many fast back projection (FBP) algorithms have proposed...
This paper puts forward a reverse backprojection algorithm for the moderately efficient generation of raw data of natural scenes acquired with general SAR geometries; in particular, we are interested in monostatic and bistatic geosynchronous (GSO) geometries. The backprojection algorithm has the advantage of being arbitrarily precise for all acquisition modes and systems, and allows an exact accommodation...
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