I wish to get to high precision distance between 2 not moving points.
e.g. 1 cm accuracy for distance 1 km
I think if I will catch same GPS signal in two points then distance between resulting coordinates would be highly precise even if coordinates would not be precise.
Not sure how to catch same signal frame on both devices.
May be GNSS-SDR?
I remember there was project syncing 2 ublox GPS receivers but can't find either.
Any idea how to measure distance precisely ?