PROGRAM WWZ: WAVELET ANALYSIS OF ASTRONOMICAL SIGNALS WITH IRREGULARLY SPACED ARGUMENTS

I. L. Andronov, A. V. Naumova

Анотація


A program WWZ is introduced, which realizes the wavelet analysis using an improved modification of the algorithm of the Morlet wavelet for a general case of irregularly spaced data, which is typical for the databases available in virtual observatories. Contrary to the well-known analogs, working with regularly spaced (equidistant in time) arguments, we have implemented an improved algorithm presented by Andronov, (1998KFNT...14..490A, ..conf...57A), which significantly increases the signal-to-noise ratio. The program has been used to study semiregular pulsating variable stars (U Del et al.), but can be used  the analysis of signals of any nature. 


Ключові слова


variable stars; quasi-periodic and cyclic oscillations; long-period pulsating variables; data analysis; wavelet analysis; U Del

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Посилання


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DOI: https://doi.org/10.18524/1810-4215.2013.26.81739

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