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sailquik said..
>>>>>
Here you are going on about this so called 'noise' again!! Totally incorrect. it is simply data.
I must admit to not being sure about this Andrew, I guess it depends how you define noise. If the 5hz ripple isn't exactly describing the GPS's speed. Then I think it could be termed as noise.
So if the ripple is still there, on a very smoothly running vehicle with no vibration of any sort, then any ripple isn't describing what's actually happening.
And I suspect this will be the case.
The nature of this "noise" is another matter, and it would be good to understand exactly what it is,
interference of some sort, aliasing effects or something else entirely?
We're assuming that the ripple will cancel itself out, and over longer times it probably does, but the shorter the time the less chance there is of complete cancellation
That's why, with the GW52, I'd much rather have a 1s or 2s average and a 10s average and do without the max speed reading, as the peak of the ripple seems to bear very little relation to what's happening.
So far the watch isn't quite as bad.