Simulink transfer function with sinusoidal parameter

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

 采纳的回答

You can multiply your transfer function by sin(t)

更多回答(1 个)

Your answer does solve the initial problem.
Now how about modifying the parameters of the denominator?

3 个评论

You can post another question if you want. And I don't understand, what means Now how about...
Very well then, I will create a new topic.

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