3 ms·
No, that's not true. The military has access to different codes and frequencies that aren't available for civilian use, which can be used to apply further corr
by DashRattlesnake 10y ago
No, that's not true. The military has access to different codes and frequencies that aren't available for civilian use, which can be used to apply further corrections to the computed location. Selective Availability was not the only difference between civilian and military GPS.
https://www.quora.com/Is-there-any-difference-between-military-GPS-data-and-civilians-in-terms-of-accuracy https://www.quora.com/Is-there-any-difference-between-milita...
- nickpsecurity 10y agoThose extra frequencies were what I was thinking about. If they're still closed, then military still cripples GPS. The points of military vs civilian for this discussion would still apply.
- wcoenen 10y agoAs far as I understand, the remaining differences between military and civilian GPS don't matter much for accuracy. The military may still have the advantage of ionospheric correction, but civilians can use other augmentation systems like WAAS[1] with similar results. I think the military signals are mostly intended to protect against signal spoofing and jamming. [1] https://en.wikipedia.org/wiki/Wide_Area_Augmentation_System https://en.wikipedia.org/wiki/Wide_Area_Augmentation_System
- nickpsecurity 10y agoThanks for that link. Never heard of it. That's some mind-blowing tech and accuracy.