傅立叶频谱图 应用离散傅立叶变换把一张图像从时域转换到频域-Fourier spectrum of discrete Fourier transform applied to an image from the time domain into the frequency domain

gaobor滤波工具 先转到频域再转回时域,不错的源码 很好用(Gaobor filtering tools to return to frequency domain to time domain, a good source is in good condition)

时频分布显示源代码,适合于非稳态的时频联合分析,可直接用于(Time-frequency distribution shows the source code, suitable for time-frequency joint analysis of unsteady, can be directly used for)

PSS primary synchronization signal in the time domain simulation related, This is the second energy entropy matlab code, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc.