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Simulink transfer function with sinusoidal parameter

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River Rock
River Rock 2012-11-11
Hi
I need to design a transfer function in the following form: K/ (Ts + 1) where the numerator K is scalar and varies sinusoidal
I tried adding and event listener on the start callback
iev = add_exec_event_listener('main\le_block','PostOutputs', @vary_me)
the vary_me function looks like:
function vary_me
a=evaluatevars('tout');
a=a(end);
a=sin(a);
set_param('main/le_block','Numerator',num2str ( sin(a) ) );
I noticed the following error
Warning: Error occurred while evaluating listener callback.
Error using vary_me
Too many input arguments.
How should I solve this issue? Is there any easier way to implement the same behavior (sinusoidal-varying numerator of transfer function) ?
Thanks for any reply

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2012-11-11
编辑：Azzi Abdelmalek 2012-11-11
You can multiply your transfer function by sin(t)

更多回答（1 个）

River Rock
River Rock 2012-11-11
Your answer does solve the initial problem.
Now how about modifying the parameters of the denominator?

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