EnglishThe 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: | BERIZZI, FABRIZIO CORSINI, GIOVANNI GINI, FULVIO |
| Autori: | Berizzi, F.; Corsini, G.; Gini, F. |
| Titolo: | A HOS Based Algorithm for Autofocusing of Spotlight SAR Images |
| Anno del prodotto: | 1997 |
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