DocumentCode
1253198
Title
HOS based algorithm for autofocusing of spotlight SAR images
Author
Berizzi, F. ; Corsini, Giovanni ; Gini, F.
Author_Institution
Dipartimento di Ingegneria della Inf., Pisa Univ.
Volume
33
Issue
7
fYear
1997
fDate
3/27/1997 12:00:00 AM
Firstpage
628
Lastpage
630
Abstract
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
Keywords
filtering theory; higher order statistics; radar imaging; synthetic aperture radar; HOS based algorithm; autofocusing; bandlimited complex linear time invariant filter; complex transfer function; higher order statistics; spotlight SAR images; synthetic aperture radar;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19970395
Filename
591417
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