Robust range alignment algorithm via Hough transform in an ISAR imaging system

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作者：
Inst for Radio Frequency Technology, Wessling, Germany [1 ]
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来源：
IEEE Trans Aerosp Electron Syst | / 3卷 / 1173-1177期
关键词：
Algorithms - Bandwidth - Computer simulation - Correlation methods - Doppler effect - Fourier transforms - Imaging systems - Mathematical transformations - Radar clutter - Scattering - Synthetic aperture radar;
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摘要：
The inverse synthetic aperture radar (ISAR) algorithm for imaging objects moving in a straight line requires range alignment as a preprocessing step since scatterers migrate through the various range bins. The conventional correlation alignment method fails when applied in ground scenarios like an airport due to the clutter environment. A procedure using Hough Transform (HT) alignment is presented which overcomes this disadvantage and provides information for clutter elimination.
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