?? a.m
字號:
clear
N = 100;
clear
N = 1000;
t = 0:10/N:10-10/N;
zt = 60*(pdf('Normal', t-8, 0, 0.3) + pdf('Normal', t, 0, 0.8))+rand(1,1000)*3;
figure(1);
x = 0:100/1000:100-100/1000;
plot(x,zt);
[X,Y]=meshgrid(-5:0.1:10,-5:0.1:10);
xy = [X(:) Y(:)];
p=mvnpdf(xy,[],[]); P=reshape(p,size(X));
[X,Y]=meshgrid(-10:0.1:5,-5:0.1:10);
xy = [X(:) Y(:)];
p1=mvnpdf(xy,[],[]); P1=reshape(p1,size(X));
X = 0:160/100:160;
Y = 0:160/150:160;
PS = P/3+P1;
PS = (PS(:,50:150) + randn(151,101)/500)*600;
figure(2);
surf(X,Y,PS);
axis tight
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