test_genspecsines

N=1024;
f1=10.3;
f2=20.6;
f3=30.9;
a1=-10;
a2=-13;
a3=-16;
w=blackmanharris(1024)/sum(blackmanharris(1024));
y=genspecsines([f1, f2, f3], [a1,a2,a3], [0,0,0], N);
t=[-511:1:512];
my=real(ifft(y));
y1=zeros(N,1);
y1=fftshift(my);
%y1(1:N/2)=(my(N/2+1:N));
%y1(N/2+1:N)=(my(1:N/2));
%A1=(1/10*(10^((abs(a1))/20)));
%A2=(1/10*(10^((abs(a2))/20)));
%A3=(1/10*(10^((abs(a3))/20)));
clf;
plot(y1);
subplot(2,1,1);
plot(y1./w);
subplot(2,1,2);
plot(-a1*cos(2*pi*f1*t/1024)-a2*cos(2*pi*f2*t/1024)-a3*cos(2*pi*f3*t/1024), 'r');%+cos(2*pi*1.5*f*t/1024)+cos(2*pi*2*f*t/1024));