exa5_27.m

matlab应用实例。如：FIR、IIR数字滤波器设计等。

%--------------------------------------------------------------------------
% exa060610_firccos.m,   for example 6.6.10;
% to test firccos and to design raised cosine FIR filter ;
%-------------------------------------------------------------------------

h = firrcos(20,0.25,0.25);
freqz(h,1)