基于EMD的HHT分析过程中用到的子程序hhspectrum，需要安装时频工具箱，文件里即为时频工具箱-HHT based on EMD used in the analysis of the subroutine hhspectrum, you need to install the time-frequency toolbox, toolbox file is time-frequency

现代信号处理大作业2，实现WV分布并画出3D图，指出信号项和交叉项，需要用到tftb-0.2工具箱-2 large modern signal processing operations to achieve WV distribution and draw 3D maps, points out items and cross-term signal is needed for tftb-0.2 Toolbox

matlab 时频工具箱 含短时傅立叶变换、Cohen类双线性时频处理函数、Affine类双线性时频处理函数、模糊函数和其他处理函数等源码，应该很有用-matlab time-frequency toolbox containing short time Fourier transform, frequency processing function when Cohen class bilinear frequency handler when Affine bilinear, fuzzy f