3 ms·
That's literally true. The GPS system sacrifices precision in Altitude for precision in Latitude/Longitude.
by moron4hire 8y ago
That's literally true. The GPS system sacrifices precision in Altitude for precision in Latitude/Longitude.
- justinator 8y agoHow? I was just under the impression that figuring out a correct elevation via gps is a hard problem. Airplanes use barometric pressure for altitude.
- wbl 8y agoIt isn't hard, it's just that with a bit of road in between you and the sky the signal is lost. Airplane use barometric pressure for altitude is in part backwards compatibility. https://en.wikipedia.org/wiki/Flight_level https://en.wikipedia.org/wiki/Flight_level