Regarding Transfer function blcok
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I am working on a Simulink model Which consists of Various Simulink blocks. I have to replace all these blocks with Matlab Function by writing the equivalent Matlab Code in it.
I have got a problem while replacing the Transfer Function in it. i.e, I used "tf" command to replace the first order Transfer Function but my Matlab doesn't consist "Control_Toolbox" which is very expensive. So, Can I replace this Transfer Function with any other logic insted of using Control_ToolBox. The Transfer Function looks as shown below.
Your ideas can be really helpful. Thank you

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Jesús Zambrano
le 12 Nov 2019
Hi Nagasai,
When you can say logic, it refers to include types of blocks such as AND / OR / NOT etc instead of your trasnfer function... That´s why I said that it is not possible to do it in that way.
From the screenshot you attach, I think that you want to implement it in time-domain instead of in frequency domain. In this case, you could use the command
sys_ss = ss(sys)
where ss is your trasnfer function.
This function is part of the Control System Toolbox, for more details check this link:
Best,
Jesús
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Jesús Zambrano
le 11 Nov 2019
Hi Nagasai,
A transfer function relates the process output ith its input, usually written in frequency domain, where the analysis of such a systems is made by using Laplace transform. In this way, the amplitud of the output at certain frequency is described as a function of the frequency of the input signal. There is not relationship between a transfer function and a logic implementation, therefore, it cannot be replaced with any logic.
Best,
Jesús
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