Separating a weak periodic component from a nonstationary time series

Autor:	L. M. Martyushev, E. G. Aksel’rod, A. P. Sergeev
Rok vydání:	2003
Předmět:	Crystal Aqueous solution Materials science Physics and Astronomy (miscellaneous) Period (periodic table) Series (mathematics) Component (thermodynamics) Statistical physics Growth rate Kinetic energy Signal
Zdroj:	Technical Physics Letters. 29:732-735
ISSN:	1090-6533 1063-7850
DOI:	10.1134/1.1615549
Popis:	Various approaches to separating a weak periodic component from a noisy nonstationary time series are considered in the case when aprioric information about useful signal is unavailable and multiply repeated measurements are impossible. The proposed methods have been used for studying the time variation of the mass of a dendritic crystal of ammonium chloride growing from an aqueous solution. It is established that the kinetic curves obtained for growth rates above 20 μm/s exhibit low-frequency oscillations with a period of about 3 s.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::af6c23871c65457938b04eaf09b0e9a7 https://doi.org/10.1134/1.1615549 Zobrazit plný text záznamu Plný text ve formátu PDF