基于小波变换的数字滤波算法  

Digital filtering arithmetic based on wavelet transform

作　　者：张玉春 杨成峰[2] 马振霞 王文娟 

机构地区：[1]国电南思系统控制有限公司,江苏南京211153 [2]东南大学电气工程学院,江苏南京210096 [3]伊川二电厂,河南洛阳471300 [4]郑州热电厂,河南郑州450003

出　　处：《天津电力技术》2008年第1期6-9,共4页Tianjin Electric Power Technology

摘　　要：基于紧支撑正交小波变换理论和多分辨率分析特性的应用研究,提出了信号的数字滤波的算法方案,并通过仿真对算法进行了验证和比较,仿真分析表明基于小波变换的滤波方案,能够有效地滤除衰减直流分量、噪声、频率波动和非整次谐波的影响。Based on application study of close support cross wavelet transform theory and its multi-resolution analysis characteristic, the digital filtering arithmetic for signal is put forward. The arithmetic is validated and analyzed by simulation. The simulation and analysis results prove that the digital filtering arithmetic based on wavelet transform is capable of filtering direct current component, noise, frequency jitter and noninteger order harmonic efficiently.

关 键 词：小波变换 数字滤波 多分辨率分析 算法 

分 类 号：TM77[电气工程—电力系统及自动化] TP21[自动化与计算机技术—检测技术与自动化装置]