fg_08_11.m

英文书《Digital Signal Processing with Examples in MATLAB》附带的MATLAB实例

% fg_08_11    Sample sequences for equalizer design.
N=100; k=0:N-1;
s=[1,zeros(1,99)];
f=exp(-.1*k).*sin(.1*k*pi);
sp_fig(1,9,5.5);
stem(k,s,'-or'); grid on; hold on;
stem(k,f,'-ob');
set(gca,'fontsize',16);
set(gca,'position',[0.12 0.12 0.85 0.82])
axis([-10 100 -.4 1.1]);
xlabel('k'); ylabel('s_k and f_k');
text(10,.9,'s_k=\delta(k)','fontsize',16);
string='f_k=e^{-0.1k}sin(0.1k\pi)';
text(15,.5,string,'fontsize',16);
hold off;