matlab信号处理小波变换
% 定义信号信息fs=2^6; %采样频率dt=1/fs; %采样间隔timestart=-8;timeend=8;t=(0:(timeend-timestart)/dt-1)*dt+timestart;L=length(t);z=4*sin(2*pi*linspace(6,12,L).*t);%为待变换信号%matlab自带的小波变换figure(1)[wt,f,coi] = cwt(z,'amor',fs);pcolor(t,f,abs(wt));shading in.
