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dc.contributor.authorAtwood, Shane
dc.contributor.authorKankelborg, Charles C.
dc.date.accessioned2019-03-27T19:25:11Z
dc.date.available2019-03-27T19:25:11Z
dc.date.issued2018-05
dc.identifier.citationAtwood, Shane, and Charles C. Kankelborg. "Blind technique for point spread function equalization with application to the Multi-Order Solar Extreme Ultraviolet Spectrograph." Journal of Astronomical Telescopes, Instruments, and Systems 4, no. 2 (May 2018). DOI:10.1117/1.JATIS.4.2.028002.en_US
dc.identifier.issn2329-4124
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/15348
dc.description.abstractWhen combining remote sensing data from multiple instruments or multiple imaging channels, differences in point spread function (PSF) can lead to systematic error. If the PSFs are not well known, then it is difficult to determine which differences in the image data are meaningful for the object being observed and which are artifacts of PSF. Direct PSF measurements can be problematic. For example, in a sounding rocket payload, launch vibrations and acceleration, subsequent operations in micro gravity, and the impact on return to Earth may all affect PSFs. We have developed a blind method to equalize the PSFs of three distinct instrument channels, as found in the Multi-Order Solar Extreme Ultraviolet Spectrograph (MOSES). To validate our technique, we generate three synthetic images with three different PSFs, with some spectrally interesting features. Thence, we demonstrate the successful removal of PSF-induced artifacts is possible, with the genuine spectral features left intact. We also perform blind PSF equalizations on three copies of the same solar image, but with differing PSFs, after applying independent noise to each. The results accurately reproduce corrections performed in the absence of noise, with full knowledge of the PSFs. Finally, we apply PSF equalization to solar images obtained in the 2006 MOSES flight and demonstrate the removal of artifacts.en_US
dc.description.sponsorshipNASA grant NNX14AK71Gen_US
dc.language.isoenen_US
dc.rightsCC BY: This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and useen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/legalcodeen_US
dc.titleBlind technique for point spread function equalization with application to the Multi-Order Solar Extreme Ultraviolet Spectrographen_US
dc.typeArticleen_US
mus.citation.issue2en_US
mus.citation.journaltitleJournal of Astronomical Telescopes, Instruments, and Systemsen_US
mus.citation.volume4en_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.identifier.doi10.1117/1.JATIS.4.2.028002en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentPhysics.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage10en_US


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CC BY: This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use
Except where otherwise noted, this item's license is described as CC BY: This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use