Initial part of a response in Simulink: how to fade in?
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Hello forum, I am trying to simulate the behavior of a 1x1 dynamic system, giving as input a sinusoidal signal (constant amplitude) with a variable frequency (from 0 Hz to 100 Hz, with a sweep rate of 2 Hz/s). The problem is that, not knowing the initial conditions of the output, the response of the system shows oscillations in the first part (see picture below):
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/170876/image.bmp)
How to avoid this? I would like to see a very clean response, similar to the input signal
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Tony Mohan Varghese
on 19 Mar 2018
Please provide more information regarding the code that you use to generate the output.
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