电测与仪表2012，Vol.49Issue(7)：29-32,4.
基于小波变换和快速傅里叶变换的谐波检测
The Harmonic Detection Based on Wavelet Transform and the Fast Fourier Transform
桑松 1柴玉华 1孙影1
作者信息
- 1. 东北农业大学工程学院,哈尔滨150030
- 折叠
摘要
Abstract
The method of harmonic detection based on the Fourier transform can determine the frequency and amplitude of each harmonic of stationary signal,and the wavelet transform can accurately grasp the local details of the signal.Using their complementary superiority of the two methods,a wavelet transform and fast Fourier transform combination of comprehensive testing program was proposed to detect a typical complex harmonic signal.The MATLAB simulation results show that the detection method can accurately detect various steady-state harmonic,determine the transient signal and accurate positioning loation of the discontinuity point,which provides the feasibile and effective plan to solve the problems of harmonic.关键词
谐波/小波变换/快速傅里叶变换/MATLABKey words
harmonic,wavelet transform,FFT,MATLAB分类
信息技术与安全科学引用本文复制引用
桑松,柴玉华,孙影..基于小波变换和快速傅里叶变换的谐波检测[J].电测与仪表,2012,49(7):29-32,4.
