As someone who did location work based on timing in another context - picking 3 satellites straight above seems weird - we had better accuracy when beacons were right angles - basically if you have a timing error and sats are near each other - the intersection of the two lines moves hugely
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As someone who did location work based on timing in another context - picking 3 satellites straight above seems weird - we had better accuracy when beacons were right angles - basically if you have a timing error and sats are near each other - the intersection of the two lines moves hugely
That's "dilution of precision": https://en.wikipedia.org/wiki/Dilution_of_precision_(navigat...