exam4_17.m

用于DSK5416的程序

%
% exam4_17.m - M-file for Example 4-17
%
N=256;
n=[0:N-1];
omega=0.25*pi;
xn=2*sin(omega*n);     % generate a sinewave
Xk=fft(xn,N);          % FFT
absXk=abs(Xk);         % compute magnitude spectrum
plot(absXk(1:(N/2)));