| 小波变换模极大值法检测信号突变点 |
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| 引用本文： | 郭先定,李敏,何光普.小波变换模极大值法检测信号突变点[J].电气应用,2006,25(11):138-140. |
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| 作者姓名： | 郭先定 李敏 何光普 |
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| 作者单位： | 1. 乐山师范学院数学系,614000
2. 乐山师范学院物电系,614000 |
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| 摘 要： | 传统的傅里叶分析由于在时域不能局部化,难以精确检测到信号发生突变的时间。小波变换由于具有良好的时频局部化特性,故能精确检测到信号发生突变的时间。介绍应用小波变换模极大值法检测信号突变点的方法,仿真结果证明该方法的有效性。
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| 关 键 词： | 小波变换 模极大值 突变点检测 |
| 修稿时间： | 2006年2月27日 |
Applying Wavelet-Transform to Inspect the Discontinuous Dot of Signal |
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| Guo Xianding.Applying Wavelet-Transform to Inspect the Discontinuous Dot of Signal[J].Electrotechnical Application,2006,25(11):138-140. |
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| Authors: | Guo Xianding |
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| Affiliation: | Leshan Teachers College |
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| Abstract: | Conventional Fourier transform can' t localize in time field, so it can' t inspect signal' s break time accurately. While wavelet transform can localize in both time and frequency field, it can inspect signal's break time accurately. How to apply wavelet transform max - modular to detect signal' s discontinuous time is introduced . Simulation result testifies it's validity. |
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| Keywords: | wavelet-transform max-modular inspect discontinuous dot |
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