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How to estimate transfer function of a plant when we have the outputs of step inputs?

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rodger
rodger 2014 年 11 月 11 日
回答済み: Arkadiy Turevskiy 2014 年 11 月 13 日
How to estimate transfer function of a plant when we have the outputs of step inputs?

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Arkadiy Turevskiy
Arkadiy Turevskiy 2014 年 11 月 13 日
You can use System Identification Toolbox, with tfest function.If you do not have access to this toolbox, you can try to do it (sort of) visually, if the system can be described by 1st or 2nd order transfer function - from visual inspection of step response you can get an idea of transfer function parameters.

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