www.gusucode.com > dsp 案例源码程序 matlab代码 > dsp/GetTheUnderlyingFIRFilterExample.m

    %% Get the Underlying FIR Filter of the Differentiator
% Create a |dsp.Differentiator| System object with default properties. 
%%
DF = dsp.Differentiator;
%%
% Use |getFilter| to get the underlying FIR filter, |filter|, 
% which implements the differentiator, |DF|.
filter = getFilter(DF)