this post was submitted on 23 Nov 2023
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Are you meaning 300 measurements per second? Because civilian gps has an accuracy of ~3 meters. I may be misunderstanding though
The GPS chips have internal limits on how fast they think they can move. If they determine that they are moving faster than 300m/s they will stop outputting any results for a period of time. This limit is, IIRC, put in at the silicon level, so only military chips can bypass it.
If you try to use mapping apps on a plane you sometimes run into this issue.
But even the fastest airliners at the moment (A330 neo) moves slower than 300m/s. Wikipedia claims that COCOM limits are even higher so I don't think that they are the reason for the inaccurate tracking on planes.
There's also a height limit