进行傅里叶分析和频谱分析，可以对所得的波形进行时频分析-Fourier analysis and spectrum analysis, frequency analysis can be carried out on the resulting waveform

The Fast Fourier Transform (FFT) is one of the rudimentary operations in field of digital signal and image processing. Some of the very vital applications of the fast fourier transform include Signal analysis, Sound filtering, Data compressio

传统傅里叶变换（Fourier Transform）分析方法已经在众多的领域内产生巨大影响。特别在1965年之后，快速傅里叶变换（FFT）算法的发现及改进使得离散傅里叶变换（DFT）实现了高效的数学实现，为数字信号处理技术应用于各种信号的实时处理创造了条件，加速了离散时间信号与系统分析技术的发展。-it good for you.Traditional Fourier transform (Transform Fourier) analysis method has a great impact

数字信号处理的视频分析中短时傅立叶变化STFT和连续小波变化(Digital signal processing of short time Fourier transform in video analysis STFT and continuous wavelet change)