Calculation of Significant Wave Height Using the Linear Mean Square Estimation Method  

作　　者：GAO Yangyang YU Dingyong LI Cuilin XU Delun 

机构地区：[1]College of Engineering, Ocean University of China, Qingdao 266100, P. R. China [2]College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266001, P. R. China

出　　处：《Journal of Ocean University of China》2010年第4期327-332,共6页中国海洋大学学报（英文版）

基　　金：support for this study was provided by the National Natural Science Foundation of China (No.40776006);Research Fund for the Doctoral Program of Higher Education of China (Grant No.20060423009);the Science and Technology Development Program of Shandong Province (Grant No.2008GGB01099)

摘　　要：Significant wave height is an important criterion in designing coastal and offshore structures.Based on the orthogonality principle, the linear mean square estimation method is applied to calculate significant wave height in this paper.Twenty-eight-year time series of wave data collected from three ocean buoys near San Francisco along the California coast are analyzed.It is proved theoretically that the computation error will be reduced by using as many measured data as possible for the calculation of significant wave height.Measured significant wave height at one buoy location is compared with the calculated value based on the data from two other adjacent buoys.The results indicate that the linear mean square estimation method can be well applied to the calculation and prediction of significant wave height in coastal regions.Significant wave height is an important criterion in designing coastal and offshore structures.Based on the orthogonality principle,the linear mean square estimation method is applied to calculate significant wave height in this paper.Twenty-eight-year time series of wave data collected from three ocean buoys near San Francisco along the California coast are analyzed.It is proved theoretically that the computation error will be reduced by using as many measured data as possible for the calculation of significant wave height.Measured significant wave height at one buoy location is compared with the calculated value based on the data from two other adjacent buoys.The results indicate that the linear mean square estimation method can be well applied to the calculation and prediction of significant wave height in coastal regions.

关 键 词：significant wave height linear mean square estimation method orthogonality principle 

分 类 号：P731.22[天文地球—海洋科学] TN966[电子电信—信号与信息处理]