摘要
系统地分析了小波变换的物理意义和特点，将小波变换原理应用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。
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 .
出处
《电力自动化设备》
EI
CSCD
1999年第6期15-17,共3页
Electric Power Automation Equipment
关键词
小波变换
数字滤波
电力系统
微机保护
wavelettransformation
multi resolution analysis(MRA)
decomposition and inverse
