The data were obtained from an international collaboration in a frame of the "Inter-Longitude Astronomy" (ILA) campaign, as well as from the international databases. We have elaborated a series of algorithms and programs for statistically correct analysis, and have applied them to 2000+ variable stars of different types. ![]() In the commonly used methods, there is often a "matrix-phoebia". This leads to the orthogonality of the basic functions, and thus the simplified methods give biased parameters of the approximations. Kepler, GAIA, WISE etc.) or using ground-based telescopes with CCD (NSVS, ASAS, CRTS, SuperWASP etc.) or photographic (Harvard, Sonneberg, Odessa etc.) equipment. Astronomical photometrical surveys are typically irregular in time, obtained in space (Hipparcos/Tycho. We review improvements of methods of time series analysis for signals with generally irregular distribution in an argument. ![]() Odessa National Maritime University, Ukraine ![]() Improved Phenomenological Modelling of Multi-Component Signals: Applications to Variable Starsĭepartment of “Mathematics, Physics and Astronomy”
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