College of Shipbuilding Engineering;
Harbin Engineering University;
Harbin 150001;
China;
China Ship Research and Development Academy;
Beijing 100192;
China;
Offshore Oil Engineering Co.;
Ltd.;
Tianjin 300451;
China;
Wave; characteristic; distributions; Transformed; Gaussian; process; Transformed; function; Parametric; method; Non-parametric; method; Crossing-density; function;