|
| 摘要: |
| 系统地分析了小波变换的物理意义和特点，将小波变换原理于微机保护数字滤波器。仿真表明，该滤波器可以准确地滤除信号中的直流分量和高频分量，具有算法简单可靠的优点，适合计算机的实时处理。 |
| 关键词: 小波变换 多分辨分析 分解与重构 |
| DOI： |
| 分类号:TM711 TM771 |
| 基金项目: |
|
| Study of Digital Filter Based on Wavelet Analysis |
|
HA Heng-xu YUAN Zhi-hao SANG Zai-zhong
|
| Abstract: |
| The basic characteristicsand physical meaning of wavelettransformation are discussed in detail,and the application of waveletanalysis principalin digitalfilterfor protection isillustrated clearly .Thefilter based on waveletanalysisis much betterthan the traditionalfilter based on Fourier analysis.Itis more suitable for computerrealtime processing . |
| Key words: wavelettransformation,multi resolution analysis(MRA),decomposition and inverse |
