| 海浪能量谱密度函数计算方法 |
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| 引用本文： | 王言英,徐继文,赫亮.海浪能量谱密度函数计算方法[J].哈尔滨工程大学学报,2011(10):1283-1289. |
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| 作者姓名： | 王言英 徐继文 赫亮 |
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| 作者单位： | 大连理工大学船舶工程学院; |
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| 基金项目： | 国家863计划资助项目(2006AA09A104) |
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| 摘 要： | 为了充分利用有限观测资料确定海洋结构物设计与营运环境条件,以北海North Alywn平台提供的一次风暴记录为依据,以提高谱峰分辨率和减小谱方差为谱估计目标,在快速傅里叶变换算法(FFT)基础上,引入最大熵算法(MEM)和小波变换算法(WT)；为实现对小容量子样有效的谱估计,应用自举理论(BT)在原始子样基础上构建移动...
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| 关 键 词： | 海浪谱 FFT算法 最大熵法 小波变换 自举理论 |
Computational analysis of wave spectral estimation |
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| WANG Yanying,XU Jiwen,HE Liang.Computational analysis of wave spectral estimation[J].Journal of Harbin Engineering University,2011(10):1283-1289. |
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| Authors: | WANG Yanying XU Jiwen HE Liang |
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| Affiliation: | WANG Yanying,XU Jiwen,HE Liang(School of Naval Architecture,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | In order to make full use of limited observation data to determine the offshore structure design and operating conditions,a computational analysis of wave spectral estimation was made based on the storm record provided by the North Alywn platform in the North Sea.The objective of spectral estimation is to increase the ability to distinguish two adjacent spectral peaks and to reduce the variances for spectral estimation.The maximum entropy method(MEM) and wavelet transformation(WT) algorithm were introduced ... |
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| Keywords: | wave spectrum fast Fourier transform(FFT) algorithm maximum entropy method(MEM) wavelet transform(WT) algorithm bootstrap transform(BT) algorithm |
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