(1.9)
1.9. , s(t) 0 30 /. MATLAB , 90 95% . Es (w) :
, (1.10)
s(t) fc.
Wf=abs(Sw).^2; Wf(1)=Wf(2); % 0/0 plot(f,Wf) Ef=cumsum(Wf); Efn=Ef/Ef(end); Efn(end) | for i=1:length(Efn) if Efn(i)>= 0.9 fc=f(i-1); break end end fc |
1.9 -
0.9 2257 , 0.99 3512 . , -¥ +¥, 2*8.7689e-5 =1.7538e-004 .