fg_06_19.m

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

% fg_06_19  Chirping signal.  
N=100; r=.99; s=[1:2:16];
Nx=300; k=0:Nx-1;
x=(1+3*k/Nx).*sin(2*pi*k.*(.05+(k/Nx)*.06));
sp_fig(1,9,3);
set(gcf,'position',[80,40,700,450]);
plot([0:Nx-1],x,'r'); grid on;
set(gca,'fontsize',16);
xlabel('k'); ylabel('x_k'); title('Chirping signal');