The ideas several Slowtwitchers have proposed as technology solutions to drafting have always had drawbacks. GPS isn't accurate enough. RFID can't tell which bike is in front. Cameras are snapshots of dynamic situations. Looks like the GPS issue may be going away with accuracy down to the inch.
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Re: GPS-based draft monitoring may be possible after all [dgunthert]
[ In reply to ]
I think it will be quite a while before that is at a price point where it makes sense, even if they have potentially reduced the amount of computation required. GPS accuracy down to an inch or less relies on carrier phase measurements, and to assist with the ambiguity of where two signals are on the carrier wave requires input from a fairly precise inertial system.
Spot
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Taco cat spelled backwards is....taco cat.
Spot
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Taco cat spelled backwards is....taco cat.
Re: GPS-based draft monitoring may be possible after all [spot]
[ In reply to ]
In English please (ha!)
Re: GPS-based draft monitoring may be possible after all [dgunthert]
[ In reply to ]
GPS accuracy improves greatly (not sure down to what) by using land based signals, instead of sat's.
Just Triing
Triathlete since 9:56:39 AM EST Aug 20, 2006.
Be kind English is my 2nd language. My primary language is Dave it's a unique evolution of English.
Just Triing
Triathlete since 9:56:39 AM EST Aug 20, 2006.
Be kind English is my 2nd language. My primary language is Dave it's a unique evolution of English.
Re: GPS-based draft monitoring may be possible after all [DavHamm]
[ In reply to ]
DavHamm wrote:
GPS accuracy improves greatly (not sure down to what) by using land based signals, instead of sat's.That's differential GPS, which is different from what this is talking about. This is using the actual phase of the carrier wave, rather than the information in the carrier wave, to measure distance. The hard part is making sure that the two signals you are comparing are on the same cycle.
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Taco cat spelled backwards is....taco cat.
spot wrote:
DavHamm wrote:
GPS accuracy improves greatly (not sure down to what) by using land based signals, instead of sat's.That's differential GPS, which is different from what this is talking about. This is using the actual phase of the carrier wave, rather than the information in the carrier wave, to measure distance. The hard part is making sure that the two signals you are comparing are on the same cycle.
Yawn. I are smart two.