Lukas Schwerdt

Thank you so much for implementing my feature request, and I am happy to hear that it actually works well in practice. But I dont want to oversell the benefits...

@ctzsnooze Maybe I can help with that too. What exact plots do you need? My original feature request already has plots of the amplitude, phase & group delay, comparing the...

It seems the main problem is to figure out the formulas to calculate the correct filter coefficient given a selected cutoff frequency. I will definitively look into tha more when...

Thank you for flight testing and praising the Bessel filter @SupaflyFPV ;). But your data looks like the PT2 filter does a lot more attenuation than the Bessel filter. So...

@ctzsnooze I do not want to discount your efforts. On the contrary, they are very valuable. In this case to show that there are still implementation issues, given the fact...

For modeling the copter I would start as simple as possible: - Look at one axis by itself (pitch/roll). - Ignore elastic modes. They should be well above the low...

> Overall the biquad has more delay than the PT2 in the passband region. You are right, when set to the same cutoff, the Butterworth filter has more delay and...

@KarateBrot I did basicylly what you wanted to to, but using the analog filter equations, since I am much more familiar with those: I started with the transfer function (from...

@KarateBrot I just wanted to do the comparisons using the analog filters and did not even cosider if it works accurately for the digital ones. At 4kHz sampling rate and...

I think this is a great idea, and a relatively easy to implement step on the path to smoother high speed printing. One advantage of this approach is that it...