This paper deals with the method of simulating sea wave to decrease its disturbance in the watercraft navigating.Firstly the ITTC two-parameter spectrum is selected as the power spectrum of sea wave to be simulated.Secondly the selected power spectrum is parted on a prescription composed of drugs of equal amount frequency
and the frequency of harmonic wave is determined by calculating the mass center of each section.Finally the simulated sea wave with time and space are determined on the basis of Longuest-H...