VSAA: A method of tracing variable frequencies in time series analysis

Details VSAA: A method of tracing variable frequencies in time series analysis VSAA: A method of tracing variable frequencies in time series analysis

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coast.157...87t&link_type=abstract

Communications in Asteroseismology, Vol.157, p. 87-91

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In this work we discuss a new method of time series analysis. This new method -Variable Sine Algorithmic Analysis, (VSAA)- is based on a single sine function with variable coefficients and is powered by the simplex algorithm. It can be applied to almost every type of time series, e.g., to orbital period variations, pulsating stars, sunspot activity, etc., providing a very accurate and simple analysis. Especially in cases of phenomena demonstrating variable frequencies but triggered by a single mechanism, VSAA provides a straightforward solution. Applications are given to synthetic and real data.

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