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| Re: Canarsie CBTC (101441) | |||
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Re: Canarsie CBTC |
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Posted by RonInBayside on Tue Jun 21 09:54:50 2005, in response to Re: Canarsie CBTC, posted by Stephen Bauman on Tue Jun 21 05:15:40 2005. Thank you. I'd lost track of your actual question. Let d = distance between intervals.So if the position error is 0 at t0, 15 feet at t1, 30 feet at t2, 45 feet at t3 (where we talk about 1 second intervals): The velocity estimate at t1 is accurate within +/- 15 feet per second; the velocity at time t2 is (d(t1:t2) +/- 15 feet)/ 1 second The velocity estimate at time t3 is (d(t2:t3) +/- 15 feet) / 1 second . So the estimate of velocity at each of the intervals will vary at most by + or - 15 feet per second. |
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