Surely they can’t be using GPS for positions just a few feet apart.
Also, how quickly can they respond to wind and such?
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I was going to not comment but there is so much wrong GPS/GNSS information in the comments.
I’m not going to go into all the corrections, to many, just wanted to point out that not all the statements/facts regarding GPS are correct.
My one sentence on how the likely are doing the drone show is RTK GNSS plus other sensors to get 2-5cm horizontal and vertical position accuracies. Totally doable and achievable. Speculating that they are using RTK but not on the achievable accuracies.
Source: I am a software developer developing RTK positioning engines at one of the leading GNSS companies. Have 2 degrees in the field of GNSS as well.
GPS and RTK can be pretty precise. Add in Inertial Reference too and you can get your actual position on all axes without issue. For instance for most commercial flights, GPS is used to precisely locate the plane on the ground. It does’t move during this to get it truly calibrated. From there it uses it’s gyros and accelerometers to then determine movement in the atmosphere. The GPS is still there as a “check” in a way to verify it’s accurate. There’s also always more than one IRS system as well so it can cross check eachother. For instance an Airbus A320 has 3 of them.
I think the drones communicate with each other and share their data. Data can be its distance from other drones thru UWB sensors.
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