Using quantum sensors, the company achieved ten times the accuracy of conventional satellite-based navigation systems, while maintaining the one nautical mile positioning accuracy.
Don’t we use GPS accurate to within centimeters for construction?
High-end dual-frequency receivers ($$$) can do this, yes. But the earth’s magnetic field is not controlled by any government or military entities. This is pretty big
Gravitational field. There’s no way you could achieve this with the magnetic field.
Navigation with a suitcase sized device that doesn’t rely on hundreds of thousands of satellites? Honestly this sounds great.
Not even thousands
Not even hundreds
Try 31
You’re literally off by a factor of 3225
Hundred of thousands of satellites? Are you on mushrooms or something?
So, for anyone else who became curious after this exchange:
I tried to look up how many there actually are. It’s hard to give a single number, since there are many different ways to count them, but vaguely speaking it’s in the range of dozens to a few hundred. GPS specifically has had 83 satellites built, of which 31 are currently operational, but most of the others still exist, they’re just parked in a higher orbit for retirement. There’s also GLONASS, BeiDou, Galileo, QZSS, and IRNSS/Navic. QZSS and IRNSS don’t have as many satellites, and the rest are kinda roughly similar in number (e.g. GLONASS has had 146 built and 24 currently operational).
So yeah. Nowhere near hundreds of thousands. Even Starlink, which now comprises more than half of the total satellites of any kind in orbit, has only about 10,000.
