[time-nuts] Is oscillator sync always bad?
Bruce Griffiths
bruce.griffiths at xtra.co.nz
Thu Dec 18 20:48:44 UTC 2008
Pedrag
You may want to look at:
http://my.ece.ucsb.edu/yorklab/Publications/BioBib/84%20-%20MTT%20May%201997%20Phase%20Noise.pdf
http://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/49985/1/PhysRevLett_98_184101.pdf
to get some idea of the complexities involved in such a scheme if you
intend to reduce the phase noise of an ensemble of mutually coupled
oscillators.
Bruce
Rick Karlquist wrote:
> Some of Len Cutler's engineers at HP attempted to build
> an ensemble of nine 10811 oscillators. It was quite
> non-trivial and I'm not sure they ever completed
> the project. I doubt whether just letting 10811's
> self synchronize would result in satisfactory performance.
>
> Rick Karlquist N6RK
>
>
> Predrag Dukic wrote:
>
>> Hi, Time -Nuts,
>>
>> Did anyone try to deliberately allow syncronisation of two
>> oscillators, by , for example paralleling outputs of two 10811.
>>
>> I expect to see some benefits from the usual statistics: Phase
>> noise divided by sqrt of 2 and also decreased amplitude random
>> frequency jumps.
>>
>> Aging could also be average of the two.....
>>
>> Predrag Dukic
>>
>>
>>
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