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

    %% Release Differentiator Filter
% Create a differentiator filter with default properties. Run |step| on the 
% object. Verify that the differentiator filter is locked.

%%
DF = dsp.Differentiator;

y = step(DF,randn(10,2));
Lockstatus = isLocked(DF)

%%
% Release the differentiator filter, and verify that it is unlocked.

release(DF)

Lockstatus = isLocked(DF)