Development of Wave by Wave Analysis Program using MATLAB

摘要

In case of observing only wave height and period in the field,various wave characteristics are mainly calculated by wave by wave analysis method.In this paper,an wave by wave analysis program using MATLAB language is developed.It is possible to perform a function such as 1) correction for mean water level,2) calculation for zero crossing time,3) calculation for individual wave height,4) time interval by using zero upcrossing and downcrossing method.The applicability of the developed program to the data of 0.2 second interval observed by using the WaveGuide Radar installed on HeMOSU-1 was examined.Tidal level variation removal and zero crossing time estimation were determined by linear or quadratic interpolation.It was judged that the Goda method was appropriate for calculating individual wave height,and the method proposed in this study seems to be improved through subsequent research.Due to the fineness of the sample,it can be seen that characteristics of representative waves are different from the results calculated by zero upcrossing and downcrossing method.