| 希尔伯特—黄变换谱与傅立叶谱的比较分析 |
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| 引用本文： | 汤华颖,郭永刚.希尔伯特—黄变换谱与傅立叶谱的比较分析[J].山西建筑,2009,35(24):68-69. |
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| 作者姓名： | 汤华颖 郭永刚 |
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| 作者单位： | 1. 北京工业大学,北京,100022
2. 中国水利水电科学研究院,北京,100044 |
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| 摘 要： | 介绍了希尔伯特—黄变换的基本原理,以具体模拟信号为例,讨论了FFT与HHT在信号处理中的差别,比较了算例信号的FFT谱图和HHT谱图,阐述了Hilbert谱图的各种含义,以便更有效地运用HHT方法对实际工程中的信号进行分析与处理。
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| 关 键 词： | 时频分析 边际谱 瞬时频率谱 |
Comparative analysis of HHT and FFT on Hilbert |
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| TANG Hua-ying,GUO Yong-gang.Comparative analysis of HHT and FFT on Hilbert[J].Shanxi Architecture,2009,35(24):68-69. |
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| Authors: | TANG Hua-ying GUO Yong-gang |
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| Affiliation: | TANG Hua-ying GUO Yong-gang |
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| Abstract: | It introduces the basic law of HHT on Hilbert. Taking the example of a simulating signal, it discusses the difference in signal processing between FFT and HHT, compares FFT spectrum and HHT spectrum, and illustrates all the meanings of Hilbert spectrum, so as to take HHT to analyze and process the signals in projects. |
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| Keywords: | time-frequency analysis marginal spectrum instantaneous frequency spectrum |
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