matlab小波周期分析程序.doc

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1、clears=xlsread('1')fori=1:length(s);forj=1:length(s);wreal(i,j)=0.0;wimage(i,j)=0.0;fork=1:length(s);t=(k-j)/(1.0+i);wreal(i,j)=wreal(i,j)+s(k)*exp(-0.5*t^2)*cos(6.2*t);wimage(i,j)=wimage(i,j)+s(k)*exp(-0.5*t^2)*sin(6.2*t);end;wreal(i,j)=wreal(i,j)/((i+1.0)^0.5);wimage(i,j)=wimage(i,j)/((i+1.0)^0.5

2、);end;end;w=complex(wreal,wimage);w_abs=(abs(w)).^2;t=1962:2014;a=1:length(s);contour(t,a,w_abs)figurecontour(t,a,wreal(1:length(s),1:length(s)))end不要忘記加上圖例及橫縱坐標的名稱y=w_abs'w=sum(y)plot(w)