engleski

Functional Relation Between Representative Wave Periods Based on Wave Spectra and Autocorrelation Function

This paper presents the analysis of compatibility between representative wave periods determined: statistically, from one-dimensional frequency wave spectrum and from autocorrelation function.Spectral density function and autocorrelation function are used to describe random but frequent signals, such as wave records. Autocorrelation function is a measure of correlation between values of a random process at successive time instants. Spectral density function describes how the wave energy is distributed with frequencies of spectral decomposition of random signal. Analysing short wave records of Adriatic sea during some wave situation, frequency wave spectra and autocorrelation functions were obtained. Their corresponding representative periods were determined and compared to periods obtained by statistical analysis of wave records in order to define a functional relation between them.

wave periods, spectral density function, autocorrelation function

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