Determination of a phase shift between two nonsinusoidal signals represented by digital counts

Autor:	E. I. Gol’dshtein, I. M. Katz
Rok vydání:	2007
Předmět:	Physics symbols.namesake Fourier transform Phase correlation Mathematical analysis symbols General Physics and Astronomy Linear interpolation Zero crossing
Zdroj:	Russian Physics Journal. 50:1032-1039
ISSN:	1573-9228 1064-8887
DOI:	10.1007/s11182-007-0149-6
Popis:	Applicability of the previously developed method of determining a phase shift based on the use of the Telleggen quasipower theorem for an analysis of nonsinusoidal signals is examined. Two new methods of calculating the phase shift between nonsinusoidal signals based on the Fourier transform of signals with the subsequent determination of zero crossing points and on the direct determination of zero crossing points with the help of linear interpolation of the examined signals are suggested. The accuracy of the suggested methods is estimated. It is demonstrated that the method based on the Fourier transform of signals has higher accuracy in comparison with other methods.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::febb39391a9b980d53c6c27260d04e0a https://doi.org/10.1007/s11182-007-0149-6 Zobrazit plný text záznamu Plný text ve formátu PDF