How do I divide frequency responses?

[NullMember]

Hello everyone, I'm trying to perform division in the frequency domain in Python, but I couldn’t achieve proper results. Can anyone elaborate on how REW does it?

 

[John Mulcahy]

There's not a lot to it, just complex division of the individual FFT results for each frequency. You may need to apply regularisation to the divisor if it can be zero, which means adding a very small magnitude to it so that you don't get divide by zero problems.

 

[NullMember]

There's not a lot to it, just complex division of the individual FFT results for each frequency. You may need to apply regularisation to the divisor if it can be zero, which means adding a very small magnitude to it so that you don't get divide by zero problems.

Thanks for your reply. I've added regularization and made changes to windowing and padding. These changes have solved my problem.