www.gusucode.com > dsp 案例源码程序 matlab代码 > dsp/WidebandHighpassDesignUsingAnInterpolationFactorOf6Example.m
%% Wideband highpass design using an interpolation factor of 6 % This example shows how to use |ifir| to design a wideband highpass filter. % Copyright 2015 The MathWorks, Inc. [h,g,d]=ifir(6,'high',[.12 .14],[.001 .01]); H = dfilt.dffir(h); G = dfilt.dffir(g); Hb1 = cascade(H,G); % Branch 1 Hb2 = dfilt.dffir(d); % Branch 2 Hoverall = parallel(Hb1,Hb2); % Overall wideband highpass hfv = fvtool(Hoverall); legend(hfv,'Overall Filter');