1、clear all;clc;%-Basic ParametersGenerate signalswindow widthstepping lengthnfft pointspainting(Time Frequency Analysis)1.Hamming windows,different window width2.Gauss window ,different window width3.Hamming windows,different stepping length 4.Gauss window ,different stepping length -figure(4)subplot
2、(311);specgram(x,nfft,fN,gausswin(round(win1),16);xlabel(time(ms)ylabel(frequency(kHz)title(STFT Time-Frequency Map,Gauss window ,window width12.8ms,stepping length 16)subplot(312);specgram(x,nfft,fN,gausswin(round(win1),32);xlabel(time(ms)ylabel(frequency(kHz)title(STFT Time-Frequency Map,Gauss window ,window width12.8ms,stepping length 32)subplot(313);specgram(x,nfft,fN,gausswin(round(win1),64);xlabel(time(ms)ylabel(frequency(kHz)title(STFT Time-Frequency Map,Gauss window ,window width 12.8ms,stepping length 64)%-