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| 高精度时频分析方法研究 | |
| 引用本文： | 王红萍,孙本大,戴军.高精度时频分析方法研究[J].仪器仪表用户,2007,14(5):8-10. |
| 作者姓名： | 王红萍 孙本大 戴军 |
| 作者单位： | 1. 南京航空航天大学,南京,210016 2. 辽宁省大连市91550部队240所,大连,116023 3. 91550部队,计量站,大连,116023 |
| 摘 要： | 时频分析在非平稳信号处理中占有重要的位置,它的主要任务是表述信号的频率成分随时间变化的规律。本文在时频分析的基础上,重点研究了一种新的高精度时频分析方法-希尔伯特黄变换(HHT),并将改进HHT算法与典型时频分析方法(短时傅立叶变换、WD)进行比较,阐述了HHT的应用及优点。 |
| 关 键 词： | 时频分析 短时傅立叶变换 维格纳-威利分布 |
| 文章编号： | 1671-1041（2007）05-0008-03 |
| 收稿时间： | 2007-04-23 |
| 修稿时间： | 2007-04-23 |
The research of high-precision time-frequency analysis technology |
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| WANG Hong-ping,SUN Ben-da,DAI Jun.The research of high-precision time-frequency analysis technology[J].Electronic Instrumentation Customer,2007,14(5):8-10. | |
| Authors: | WANG Hong-ping SUN Ben-da DAI Jun |
| Affiliation: | Nanjing University of Aeronautics and Astronautics, Nanjing 210016 |
| Abstract: | Time-Frequency(TF)analysis is very important in signal processing.The main mission of TF analysis is to describe the vadety of the frequency followed time.Based on TF Analysis,there is a new high-precision TF analysis-HHT and between these TF analysis there is a comparison.Additionally,in this paper,apply the HHT method in practice because of its advantage. |
| Keywords: | HHT EMD IMF |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |