Doppler Effect with Pendulum - Understanding Frequency Resolution

[Jens Noriʇzsɔɥ]

You could find the source of the “Doppler effect” experiment at https://github.com/phyphox/phyphox-exper...er.phyphox and the key analysis function appears to be “periodicity” that is documented at https://phyphox.org/wiki/index.php/Analy...eriodicity (I am not yet entirely sure myself that I fully grasp what the module is doing. It is rather autocorrelation and definitely not FFT.).