Applying Window functions to transient signals before FFT 回答済み

To help obtain a cleaner FFT signal, you should make sure the transient signal has reached equilibrium at 0 (i.e. the system has stopped resonating).

Otherwise, you can applying an amplitude window function to the transient signal (time history) and then perform the FFT.

This can be done in the UI:

Or you can use post processing scripts in Review.