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

Автор(и)

  • I. L. Andronov Department “High and Applied Mathematics”, Odessa National Maritime University, Україна
  • A. V. Naumova Department “High and Applied Mathematics”, Odessa National Maritime UniversityA., Україна

DOI:

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

Ключові слова:

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

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. 

Посилання

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Опубліковано

2013-11-01

Номер

Том 26 № 1 (2013)

Розділ

Статті

Ліцензія

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Відповідно Закону України про авторське право і суміжні права N 3792-XII від 23 грудня 1993 року