| 经验模态分解方法在潮余流分离中的应用 |
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| 引用本文： | 王国龙,吴中鼎,袁延茂,汪洋.经验模态分解方法在潮余流分离中的应用[J].海洋测绘,2010,30(2):42-45. |
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| 作者姓名： | 王国龙 吴中鼎 袁延茂 汪洋 |
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| 作者单位： | 1. 解放军理工大学,气象学院,江苏,南京,211101;海军海洋测绘研究所,天津,300061
2. 海军海洋测绘研究所,天津,300061 |
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| 摘 要： | 分析了用经验模态分解(EMD)方法处理非平稳信号的基本原理,完成了对实测海流资料的分离,分720h、25h、15h三种情况对EMD方法用于潮余流分离的有效性进行了验证。验证结果表明:EMD方法是一种有效的潮余流分离方法,尤其对于15h以内短期测流资料的潮余流分离具有明显的优势。
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| 关 键 词： | 经验模态分解 调和分析 余流 |
Application of Empirical Mode Decomposition Method in Decomposing Tidal Current and Residual Current |
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| WANG Guo-long,WU Zhong-ding,YUAN Yan-mao,WANG Yang.Application of Empirical Mode Decomposition Method in Decomposing Tidal Current and Residual Current[J].Hydrographic Surveying and Charting,2010,30(2):42-45. |
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| Authors: | WANG Guo-long WU Zhong-ding YUAN Yan-mao WANG Yang |
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| Institution: | 1.Institute of Meteorology;Science and Technology University;Nanjing;Jiangsu;211101;2.Naval Institute of Hydrographic Surveying and Charting;Tianjin;300061 |
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| Abstract: | This paper analysed the basic principle of Empirical Mode Decomposition(EMD)method in non-stable signal processing,completed the separation of the actual current data,and tested the validity of using EMD to decompose tidal current and residual current in different situations of 720hours,25hours,and 15hours.The comparison showed that EMD method was effective for separating tidal and residual current,Especially the short-term current data within 15 hours. |
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| Keywords: | EMD harmonic analysis residual current |
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