impulse.m

自适应滤波原理_西蒙.赫金_Matlab_源代码 希望能够对学习自适应滤波技术的朋友有所帮助

%--------------------------------------------------------------------------
% Impulse radio
%
%-------------------------------------------------------------------------

%--- Time response ----
tau = 1;
FFTsize = 2048;
Fs  = 100;
t   = [-5:1/Fs:5]

v   = 10 * t/tau .* exp (-6*pi*(t/tau).^2);

plot(t,v), grid
pause

%--- Frequency response ------------
spec = 20*log10 (abs(fft(v,FFTsize)));
spec = spec - max(spec);
freq = [0:FFTsize-1]/FFTsize * Fs;
plot( freq, spec), grid
xlabel('Frequency (1/tau)')
ylabel('Spectrum')
axis([0 5 -50 10])