3 ms·
Phase-locked loops[0] are not magic ;) Also I imagine they are using a bog standard Kalman filter[1]. 0. https://en.wikipedia.org/wiki/Phase-locked_loop https
by willis936 5y ago
Phase-locked loops[0] are not magic ;)
Also I imagine they are using a bog standard Kalman filter[1].
0. https://en.wikipedia.org/wiki/Phase-locked_loop https://en.wikipedia.org/wiki/Phase-locked_loop
1. https://en.wikipedia.org/wiki/Kalman_filter https://en.wikipedia.org/wiki/Kalman_filter
- Unklejoe 5y agoI've implemented this (using GPS PPS to discipline a clock) using regular old PI control loops. I just make the loop damped enough to filter out the GPS PPS jitter and you're good.