• zqps@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    16
    arrow-down
    1
    ·
    edit-2
    2 days ago

    GPS is actually far more accurate than that. There is deterministic jitter introduced to make civilian use cases precise to only a few meters, but military equipment has the algorithm to subtract that jitter and achieve precision measured in centimeters.

    Anyway, that statement is highly misleading. They were comparing to previous inertial navigation systems, not GPS navigation.

    • Logi@lemmy.world
      link
      fedilink
      English
      arrow-up
      10
      ·
      edit-2
      5 hours ago

      Didn’t they turn all that jitter off like 15 years ago?

      Edit: I ran a little experiment and zig-zagged up a bit of hill on the bike this morning and the GPS/Galileo/Glonass unit resolved it easily. However, it didn’t quite agree where the road was.

      Map showing wiggly cycling track

      The road, was pretty narrow. The road