I'm trying to process a Chirp signal to resemble the image named "desired signal".
A Blackman-Harris window and FFT provides the correct shape i'm after, but I need just the magnitude of this signal.
I then tried a spectrum FFT (magnitude peak) with a blackman-harris window. Which provided me with the magnitude response I was after, but the signal is ramping up between 4-12kHz, when I need it to ramp down.
Does anyone have any suggestions?
I've also attached my VI.
Thanks 🙂