'Derivative' output vibration problem in Simulink

The output of 'Derivative'(continuous) block in Simulink has vibration and glitches although its clean input has no vibration.

In ode5 solver it happens in a time interval but in ode4 it happens in another time interval. The problem is same for fixed time step and variable time step mode.

Someone knows the reason?

[Rohit Reddy Madasani]

Hi Jong,

Refer the below link which discusses a similar type of issue:

http://www.mathworks.com/matlabcentral/answers/103214-why-does-the-derivative-block-not-produce-results-that-i-expect-in-simulink-7-6-r2010b