Type A Standard Uncertainty of Long-Term Noise Indicators

• Autorzy: Batko W. M. , Stępień B.

Identyfikatory

DOI

10.2478/aoa-2014-0004

• Języki publikacji: EN

Abstrakty

EN

The problem of estimation of the long-term environmental noise hazard indicators and their uncer- tainty is presented in the present paper. The type A standard uncertainty is defined by the standard deviation of the mean. The rules given in the ISO/IEC Guide 98 are used in the calculations. It is usually determined by means of the classic variance estimators, under the following assumptions: the normality of measurements results, adequate sample size, lack of correlation between elements of the sample and observation equivalence. However, such assumptions in relation to the acoustic measurements are rather questionable. This is the reason why the authors indicated the necessity of implementation of non-classical statistical solutions. An estimation idea of seeking density function of long-term noise indicators distri- bution by the kernel density estimation, bootstrap method and Bayesian inference have been formulated. These methods do not generate limitations for form and properties of analyzed statistics. The theoretical basis of the proposed methods is presented in this paper as well as an example of calculation process of expected value and variance of long-term noise indicators L_DEN and L_N. The illustration of indicated solutions and their usefulness analysis were constant due to monitoring results of traffic noise recorded in Cracow, Poland.

Słowa kluczowe

EN

long-term noise indicator; uncertainty; non-classical statistics; kernel density estimation; bootstrap; Bayesian inference

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2014
• Tom: Vol. 39, No. 1
• Strony: 25--36
• Opis fizyczny: Bibliogr. 30 poz., rys., tab., wykr.

Twórcy

autor

Batko W. M.

• AGH University of Science and Technology al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Stępień B.

• AGH University of Science and Technology al. Mickiewicza 30, 30-059 Kraków, Poland

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