A trial of evaluation based on multiplicative multivariate model for non-stationary road traffic noise

• Autorzy: Ohta M. , Fujita Y.
• Języki publikacji: EN

Abstrakty

EN

Since the non-stationary fluctuation of actual acoustic environment like the road traffic noise within a long time interval is usually caused not by the change of merely additional external noise but by the essential change of internal factors themselves, it is reasonable to give as a mathematical model of this non-stationary fluctuation not an additive model but a multiplicative model. In this paper, mainly from a methodological viewpoint, first, the characteristic function method of Mellin transform type for the above multiplicative model is introduced and a new unified expression form of the probability density function within a long time interval is derived in an expansion form based on the probability density function within a short time interval of local stationary type as its first expansion term with distribution parameters reflecting hierarchically various types linear and nonlinear correlation information.

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 1998
• Tom: Vol. 23, no. 2
• Strony: 179--194
• Opis fizyczny: Bibliogr. 19 poz., rys., wykr.

Twórcy

autor

Ohta M.

• Department of Electronic Engineering and Computer Science Faculty of Engineering, Kinki University, Japan

autor

Fujita Y.

• Department of Management and Information Science, Onomichi Junior College, Onomichi, Japan

Bibliografia

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