Hi,
I have an eletronic circuit, whose exact components are basically unknown. I do know however the input and output signals as vectors. My goal is to obtain the input signal for an arbitrary output signal. My approach so for has been to apply a certain input, measure the output and then determining the transfer function by calculating the ratio FFT(Output)/FFT(Input).
For the following measurements I recorded the output, applied the FFT, divided it by the transfer function and then used the inverse FFT to obtain my input signal.
Is this approach valid? I know for transfer functions you usually use the Laplace transform, which is in my case however difficult to realize.
Are there any other ideas to solve this problem?
Regards