Accuracy of the maximum entropy method

dc.contributor.author	Strauss, Federico Maximo	pt_BR
dc.date.accessioned	2014-07-23T02:04:40Z	pt_BR
dc.date.issued	1980	pt_BR
dc.identifier.issn	0004-6361	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/98394	pt_BR
dc.description.abstract	Although the maximum entropy method is capable of giving the period of a pure sine wave with very few data points, it is very sensitive to noise. The half power width of a spectral peak obtained by this method is proportional to (σn/A)², where σn is the standard deviation of the noise and A is the semiamplitude of the light curve. More serious are the consequences of a systematic shift of the spectral peak, by an amount proportional to the same factor. A simple autocorrelation method that is free of systematic errors is also discussed.	en
dc.format.mimetype	application/pdf
dc.language.iso	eng	pt_BR
dc.relation.ispartof	Astronomy and Astrophysics. Berlin. Vol. 81, no. 3 (Jan. 1980), p. 344-346	pt_BR
dc.rights	Open Access	en
dc.subject	Astrofisica estelar	pt_BR
dc.subject	Variable stars	en
dc.subject	Maximum entropy method	en
dc.subject	Estrelas variaveis	pt_BR
dc.subject	Autocorrelation	en
dc.subject	Entropia	pt_BR
dc.title	Accuracy of the maximum entropy method	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	000144636	pt_BR
dc.type.origin	Estrangeiro	pt_BR

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