Impulse response function (IRF) of data set

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nigel moos 2022-5-28

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https://ww2.mathworks.cn/matlabcentral/answers/1729040-impulse-response-function-irf-of-data-set

回答： Star Strider 2022-5-28

Dear reader,

Is it possible to calculate and plot the irf of a data set? For instance, i have 2 vectors, each 328x1. Now i want to calculate the irf and plot it. To clarify, Im working with measured EMG data and Moving platform data (accelerations, displacement for example)

I see a lot of impz functions online but this is only for digital filters.

I hope someone can help me with this problem?

Thanks in advance for helping me out!

Nigel Moos

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Answer 1

Star Strider 2022-5-28

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I’m not certain if it’s possible to define the impulse response of an electromyogram, however I have no idea what your data are.

The only way I can think to do it is to use the System Identification Toolbox the estimate the system response to a specific known input, estimate it, and model it. Then use the impulse function to get the response.

The Signal Processing Toolbox alternative is the invfreqz function. Then you can use the impz function with it.

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