Calculation and correction of subaperture tilt aberration modes in synthesis imaging

Anne Marie Johnson, Richard J Eastwood, Alan H Greenaway

Research output: Contribution to journalArticle

Abstract

We extend the redundant spacings calibration method for finding piston coefficients affecting the elements of a dilute aperture array so that tilt phase coefficients can also be calculated and corrected without the need for assumptions about the object. The tilt coefficient retrieval method is successfully demonstrated in simulation, and the specifics of correction by image sharpness are discussed, showing that in dilute aperture systems this method does not necessarily produce a unique image.
Original languageEnglish
Pages (from-to)757-66
Number of pages10
JournalJournal of the Optical Society of America A
Volume29
Issue number5
DOIs
Publication statusPublished - May 2012

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