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Topic: Simulink: newbie question
Replies: 1   Last Post: Nov 9, 2008 12:38 PM

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Dimitri Shvorob

Posts: 49
Registered: 4/1/08
Simulink: newbie question
Posted: Nov 9, 2008 9:34 AM
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I have a simple model that

a) generates a sine-wave signal;
b) passes it through a hit-crossing block;
c) converts the hit-crossing output (boolean) to double;
d) applies an integrator;
e) displays the signal.

All blocks's parameters are set to defaults. (For the hit-crossing block, the boundary is 0).

I expected to see a step function as the output, but

a) with a continuous integrator, the output is flat at y = 0;
b) with a discrete-time integrator, the output jumps from 0 to 1 at x = 1, and stays at y = 1 thereafter.

Could anyone explain please?

Thank you.

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