Impulse response function for non-stationary time domain signal

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how to find the Impulse response function for non-stationary time domain signal?
I first wanted to find a frequncy response and then inverse fourier transform. I found freqz function and invfreqz but its for system.
I want for data.
Ramya Raman
Ramya Raman on 15 Nov 2019
I have a output signal from an experiment. I understand if we have the input and output we can get the frequncy response and taking the IFFT will give us the impluse reponse of the system. However, I have the inputs only in statistical form.
Is there a way to get the frequncy response only with the output signal?

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Answers (1)

Nikhil Sonavane
Nikhil Sonavane on 15 Nov 2019
The concept of frequency response from input and output by using convolution in time domain and multiplication in frequency domain is valid only in the case of LTI systems.

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