Re: [time-nuts] generalization of three cornered hat

I apologize if the following isn't helpful. I'm still getting my head around all of the details of statistical analysis of clocks so I'm not 100% sure this matches what you're asking for, but I figured it might be helpful so... A portion of the document at

Re: [time-nuts] generalization of three cornered hat

On 6/16/19 4:22 AM, Poul-Henning Kamp wrote: Note that when you consider transitive measurement noise, you may find that making N simultaneous measurements against a single independent LO is simpler and better than making N(N-1)/2 measurements of all possible clock pairs. Think of

Re: [time-nuts] generalization of three cornered hat

Hi …….. and if you want to dig into ensembles of “non similar” clocks, you want to look into David Allan’s Smart Clock stuff…. http://www.allanstime.com/Publications/DWA/ There’s also a lot of stuff there on clock ensembles in general. Bob > On

Re: [time-nuts] generalization of three cornered hat

>Note that when you consider transitive measurement noise, you may find >that making N simultaneous measurements against a single independent LO >is simpler and better than making N(N-1)/2 measurements of all possible >clock pairs. Think of star vs. ring vs. mesh networks. I think

Re: [time-nuts] generalization of three cornered hat

Jim, With N oscillators involved: look for papers about clock ensembles and time scale algorithms. The 3 corner hat method, where you create a fictitious mean of 3 clocks and then compute the deviation of each real clock from the virtual mean, is just like a simple unweighted 3-clock time

Re: [time-nuts] generalization of three cornered hat

Try: https://www.researchgate.net/publication/235103340_Estimating_Frequency_Stability_and_Cross-Correlations Bruce > On 16 June 2019 at 10:54 jimlux wrote: > > > I found a lot of references to estimating the uncertainties in > measurements derived with three cornered hat. What about for

[time-nuts] generalization of three cornered hat

I found a lot of references to estimating the uncertainties in measurements derived with three cornered hat. What about for arbitrary N sources and N(N-1)/2 pair-wise measurements? There must be some magic term to search for. ___ time-nuts