posted in Technology
World's first GPS-free quantum navigation trial succeeds at sea
interestingengineering.com/innovation/gravnav-10-times-more-accurate-quantum-sensors
Replying to @Gsus4@mander.xyz
The team achieved 10 times better performance than GNSS systems, with a one nautical mile of positioning accuracy.
Variation up to a full nautical mile doesn’t seem very accurate?
Replying to @Zedstrian@sopuli.xyz
The only thing I can think is that they’re comparing with a single system (e.g. GPS or BeiDou), even though GNSS receivers will combine all four systems to get very high accuracy (a few metres).
Replying to @Deebster@infosec.pub
20 years ago we had only GPS, and it already was accurate to 10 or 20 meters.
Replying to @elmicha@feddit.org
Is that true globally? I seemed to remember that some ocean areas wouldn’t have as many satellites visible as e.g. polar orbits don’t visit all of the globe.