3 ms·
Moving users do not make a difference as the relative speed between satellites and users are dominated by the speed of the satellites which is kilometers per s
by _Microft 6y ago
Moving users do not make a difference as the relative speed between satellites and users are dominated by the speed of the satellites which is kilometers per second vs. kilometers per hour for a moving user.
The Starlink dishes and satellites are using phased array antennas by the way which can steer the beam extraordinarily fast without having to physically move the antenna at all.
https://en.wikipedia.org/wiki/Phased_array https://en.wikipedia.org/wiki/Phased_array
- londons_explore 6y ago> can steer the beam extraordinarily fast The beam steering takes about 10 milliseconds. That means effectively the beam can't be steered at all during use (imagine you steer the beam to one user, send a few packets to them, then steer the beam to another user, send a few packets to them, and repeat - thats a 20 millisecond jitter the users incur - completely unacceptable). That forces the beams to remained trained on a single user or area (covering a group of users).
- sitkack 6y agoYou just need an array of beams (16x, etc) and do a rolling cross fade to mix the position between multiple beams.