Eugen Leitl wrote:
On Wed, May 12, 2010 at 06:03:11AM -0700, jimlux wrote:
Allan had a paper where he had 8 inexpensive crystals coupled with
mixers and a microcontroller. I think it's called the Clever
Temperature Compensated XO or something like that.
Presumably, a large population of cheap coupled oscillators could be
rather accurate collectively.
I think that there's a point of diminishing returns.. the uncertainties
in the coupling start to dominate over the reduction in uncertainty from
combining multiple clocks. one of those N vs sqrt(N) sort of things.
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