A fully automatic autofocusing algorithm for post-processing ISAR imaging based on image entropy minimization

Kallitsis, ED; Karakasiliotis, AV; Boultadakis, GE; Frangos, PV

dc.contributor.author	Kallitsis, ED	en
dc.contributor.author	Karakasiliotis, AV	en
dc.contributor.author	Boultadakis, GE	en
dc.contributor.author	Frangos, PV	en
dc.date.accessioned	2014-03-01T01:34:52Z
dc.date.available	2014-03-01T01:34:52Z
dc.date.issued	2011	en
dc.identifier.issn	1392-1215	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20914
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-80051490259&partnerID=40&md5=02b3b552aaf442a95b61b0a8af80b273	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.title	A fully automatic autofocusing algorithm for post-processing ISAR imaging based on image entropy minimization	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	E. D. Kallitsis, A. V. Karakasiliotis, G. E. Boultadakis, P. V. Frangos. A Fully Automatic Autofocusing Algorithm for Post-processing ISAR Imaging based on Image Entropy Minimization // Electronics and Electrical Engineering. - Kaunas: Technologija, 2011. - No. 4(110). - P. 125-130. Autofocus is a technique for improving inverse synthetic aperture radar (ISAR) imaging. In this paper, a novel autofocusing method is developed for high-resolution stepped-frequency ISAR. Non-uniform rotational motion is compensated through the proposed post-processing methodology. In this way, the computational cost of polar reformatting process can be circumvented. The proposed CPI-split autofocusing process results in well-focused ISAR images for high angular acceleration periods. Finally, ISAR image entropy dependencies are thoroughly examined through various simulation results, leading to an acceptable range of entropy values for the autofocusing process. III. 7, bibl. 9, tabl. 3 (in English; abstracts in English and Lithuanian).	en
heal.publisher	KAUNAS UNIV TECHNOLOGY	en
heal.journalName	Elektronika ir Elektrotechnika	en
dc.identifier.isi	ISI:000290422000029	en
dc.identifier.issue	4	en
dc.identifier.spage	125	en
dc.identifier.epage	130	en