IEEE Transactions on Aerospace and Electronic Systems · 1989 · 80 citations · 2 references
Natural SciencesGeoinformaticsDigital ImagingGeometric ModelingRemote SensingGeometric CorrectionRadar Beam GeometryRadar InstrumentationRadar Signal ProcessingRadar SystemsAccuracyAzimuth DeterminationAzimuth ProcessingSynthetic Aperture RadarSynthetic Aperture Radar Image AnalysisSynthetic Aperture Radar ImagingSynthetic Aperture Radar Remote SensingSynthetic Aperture Radar Sensors
Uncorrected across-track motions of a synthetic aperture radar (SAR) platform can cause both a severe loss of azimuthal positioning accuracy in, and defocusing of, the resultant SAR image. It is shown how the results of an autofocus procedure can be incorporated in the azimuth processing to produce a fully focused image that is geometrically accurate in azimuth. Range positioning accuracy is also discussed, leading to a comprehensive treatment of all aspects of geometric accuracy. The system considered is an X-band SAR.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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