The authors propose a novel SAR (synthetic aperture radar) image autofocusing technique based on higher order statistics (HOS) analysis. The SAR imaging system has been modelled as a bandlimited complex linear time invariant (LTI) filter, so the autofocusing problem is equivalent to the problem of reconstructing the phase of a bandlimited complex LTI system. The complex transfer function of the imaging system is recovered from the estimated bispectrum of the received data by means of an ad-hoc algorithm
Autori interni: | |
Autori: | Berizzi, F.; Corsini, G.; Gini, F. |
Titolo: | HOS based algorithm for autofocusing of spotlight SAR images |
Anno del prodotto: | 1997 |
Digital Object Identifier (DOI): | 10.1049/el:19970395 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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