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

    %% Information on a Lowpass FIR Filter
% Design a lowpass FIR filter with normalized passband frequency $0.4\pi$
% rad/sample and normalized stopband frequency $0.45\pi$ rad/sample. Obtain
% information about the filter just designed.

% Copyright 2015 The MathWorks, Inc.


%%

d = designfilt('lowpassfir','PassbandFrequency',0.4,'StopbandFrequency',0.45);
s = info(d)