www.gusucode.com > signal 案例源码程序 matlab代码 > signal/EquirippleLowpassFilterExample.m

    %% Equiripple Lowpass Filter
% Design a 31-tap linear-phase lowpass filter. Display its magnitude and
% phase responses.

% Copyright 2015 The MathWorks, Inc.


%%

b = cfirpm(30,[-1 -0.5 -0.4 0.7 0.8 1],@lowpass);
fvtool(b,1,'OverlayedAnalysis','phase')