how can i find the frequency and the damping coefficient using fitting methods of the matlab?i have a signal output

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prianka shukla 2016-2-17

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回答： Star Strider 2016-2-17

curve fitting

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Star Strider 2016-2-17

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See Damped Cosine Wave Fitting for my approach. You can change the ‘fit’ function to be a sine instead of a cosine if you want to. The code will work the same. I leave it to you to extract the necessary Control System parameters from the parameters the code estimates from your data.