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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1601
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dc.contributor.authorNityananda, R.-
dc.contributor.authorNarayan, R.-
dc.date.accessioned2006-12-19T10:46:05Z-
dc.date.available2006-12-19T10:46:05Z-
dc.date.issued1983-02-
dc.identifier.citationAstronomy and Astrophysics, 1983, Vol.118, p194-196en
dc.identifier.issn0004-6361-
dc.identifier.urihttp://hdl.handle.net/2289/1601-
dc.description.abstractA general expression for the entropy E of a polarized brightness map B is obtained in terms of a general function f. An expression is also obtained for the gradient of E with respect to unmeasured Fourier coefficients of B, and it is shown that the map B-max which maximizes E is f-prime (B-max) bandlimited. Iterative numerical schemes to obtain B-max can be developed from these results as for the scalar brightness case. It is shown that if f-double prime is less than zero, then there is only one solution for B-max which maximizes E. This will lend robustness to numerical algorithms since convergence to the unique solution is assured.en
dc.format.extent363582 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherSpringer-Verlagen
dc.relation.urihttp://adsabs.harvard.edu/cgi-bin/bib_query?1983A&A...118..194Nen
dc.rights(1983) by the European Southern Observatory. Scanned images provided by the NASA ADS.en
dc.subjectASTRONOMICAL MAPSen
dc.subjectBRIGHTNESS DISTRIBUTIONen
dc.subjectENTROPYen
dc.subjectPOLARIZED LIGHTen
dc.subjectSYNTHETIC APERTURESen
dc.subjectALGORITHMSen
dc.subjectFOURIER TRANSFORMATIONen
dc.subjectITERATIVE SOLUTIONen
dc.subjectMATRICES (MATHEMATICS)en
dc.titleReconstruction of a polarized brightness distribution by the maximum entropy methoden
dc.typeArticleen
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