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to validate transfer function
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i got transfer function from excel now i need to ensure that i got correct transfer function by giving some value as input
(25.03 / s + 0.4309 ) . this is the transfer function that will give square of input. but when i tried in simulink it is showing different value
Answers (1)
Neelanshu
on 15 Apr 2024
Hi Chennam,
I understand that you are attempting to determine why Simulink is not displaying the corresponding output value of the sensor. You are inputting the sensor's data into the estimated transfer function, which was obtained with the assistance of the System Identification Toolbox.
As you mentioned, the sensor outputs the square of the input data, which can be described by the following equation: :
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1669116/image.png)
This system is non linear and transfer function is defined only for LTI systems. Therefore, the estimated transfer function will contain some inherent errors and will not exactly replicate the values.
You may refer the "Fit" report field in the Report property of the model to know about the "FitPercent" and "MSE". You may refer the documentation to know more about "tfest" :
Hope this helps.
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