i=1:0.01:pi;
x=1:0.01:pi;) G3 l, s" Y/ B6 i; R) U2 }
N1=13;! H4 A1 @' l6 ]( I7 _0 y" w
N2=15;
for i=1:pi+18 S1 i) j7 q. p
if 0.4*pi+1<=x(i)+1 && x(i)+1<=0.6*pi+1
phi_2(i)=(N2-N1)*x(i)+1/2;
end
if 0.0*pi+1<=x(i)+1 && x(i)+1<=0.2*pi+1 I' o+ _( V+ ?0 Y# C/ L0 V7 I
phi_2(i)=((N2-N1)*x(i)+1+pi)*0.5;
end
end
syms i;$ w) h, V* B% G" S* Y
Er=1-abs(exp(1j*(phi_2(i)-((N1+N2)/2)*i)).*cos(((N2-N1)/2)*i-phi_2(i) )).^2;
s=int((Er),0.4*pi,0.6*pi);
. f% S. \' q; T6 t4 H) Z
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