| 基于小波变换的海浪方向谱估计方法研究* |
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| 引用本文： | 张 乐,马玉祥,董国海.基于小波变换的海浪方向谱估计方法研究*[J].水运工程,2013(9):24-30. |
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| 作者姓名： | 张 乐 马玉祥 董国海 |
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| 作者单位： | 大连理工大学 海岸和近海工程国家重点实验室，辽宁 大连 116023;大连理工大学 海岸和近海工程国家重点实验室，辽宁 大连 116023;大连理工大学 海岸和近海工程国家重点实验室，辽宁 大连 116023 |
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| 基金项目： | 国家自然科学基金（11172058） |
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| 摘 要： | 利用数值模拟方法分析了基于小波变换的方向谱估计分析方法的适用性,测波阵列类型、波浪入射方向、方向
集中度以及采用长度对小波方向谱估计分析方法分析结果的影响。结果表明：小波方向谱的方法适用条件较广泛，实用
性更强。
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| 关 键 词： | 方向谱 小波变换 阵列类型 时间序列长度 |
Directional spectrum estimation of random wave based on wavelet transform |
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| ZHANG Le,MA Yu-xiang and DONG Guo-hai.Directional spectrum estimation of random wave based on wavelet transform[J].Port & Waterway Engineering,2013(9):24-30. |
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| Authors: | ZHANG Le MA Yu-xiang and DONG Guo-hai |
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| Institution: | State Key Laboratory of Coastal and Offshare Engineering, Dalian University of Technology, Dalian 116023, China;State Key Laboratory of Coastal and Offshare Engineering, Dalian University of Technology, Dalian 116023, China;State Key Laboratory of Coastal and Offshare Engineering, Dalian University of Technology, Dalian 116023, China |
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| Abstract: | The applicability of the estimation of the directional spectrum based on wavelet transform is
discussed using the data generated from the numerical simulations. The analysis focusing on the influences of
measured array types, wave incident direction, directional concentration and sampling lengths on the directional
spectrum based on wavelet transform is carried out, which shows that the wavelet direction spectrum is more widely
applicable. |
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| Keywords: | directional spectrum wavelet transform type of array length of time series |
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