I’ve been tuning a new 690-cass quad, with the gracious help of @xfacta and others. We’ve had some discussions about my FFT notch filter working as it should. It’s a light quad - with a high thrust-weight ratio.
I understand that there’s work in progress for improvements to FFT - so if there is indeed something peculiar here, maybe this example is helpful input.
If FFT is working as intended - or if maybe I have the parameters set wrong - I’d appreciate any guidance that might be available.
Here’s the Mission Planner FFT panels: (Please note that I zoomed in on the graphs.)
@andyp1per Hi Andy, here’s a sample of FFT not getting down to the base frequency, 50Hz in this case, and instead focusing on the obvious peak at 100Hz.
Let us know if there’s a reasonable way to improve FFT to capture that base frequency, or should we wait for a future improvement.