| Hilbert-Huang变换及其应用研究 |
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| 引用本文： | 刘世金.Hilbert-Huang变换及其应用研究[J].高师理科学刊,2012(4):40-42,53. |
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| 作者姓名： | 刘世金 |
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| 作者单位： | 湖北国土资源职业学院机电工程系,湖北武汉430090 |
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| 摘 要： | 讨论了几种非线性非平稳信号的时频分析方法,重点介绍了经验模态分解方法及Hilbert-Huang变换,并对Hilbert-Huang变换的时频分析特性进行了计算机模拟仿真分析.给出了Hilbert-Huang变换在心音信号分析中的应用实例,实验结果验证了该方法的有效性和优越性,具有一定的工程应用价值.
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| 关 键 词： | Hilbert-Huang变换 经验模态分解 时频分析 |
A study of Hilbert-Huang transform and its applications |
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| LIU Shi-jin.A study of Hilbert-Huang transform and its applications[J].Journal of Science of Teachers＇College and University,2012(4):40-42,53. |
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| Authors: | LIU Shi-jin |
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| Institution: | LIU Shi-jin(Department of Mechanical and Electrical Engineering,Hubei Land Resources Vocational College,Wuhan 430090,China) |
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| Abstract: | Focusing on the empirical mode decomposition method and Hilbert-Huang transformation,several time-frequency analytic methods to analyze non-linear and non-stationary signals was discussed.The time-frequency analytic characteristics of the Hilbert-Huang transformation was analyzed by the computer simulation.Presented an example of analyzing phonocardiogram by the Hilbert-Huang transformation,the experimental results indicated the advance,efficient and value of this method in the engineering application. |
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| Keywords: | Hilbert-Huang transform empirical mode decomposition time-frequency analysis |
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