摘要
经典信号分析工具Fourier变换对时变信号分析存在较大的局限性，从Fourier分析的加窗处理入手，逐步介绍几类现代时频分析方法及其应用领域。
Fourier transformation, the classical signal analysis method have some limitations in the process for time-varying analysising. From windowing Fourier transformation, gradually introduced several kinds of modern time-frequency analysis method and its application in the field of Science and technology.
出处
《教学与科技》
2010年第2期17-21,共5页
Teaching and Science Technology
关键词
FOURIER变换
时频分析
小波变换
Fourier Transformation
Time-Frequency Analysis
Wavelet Transformation
