[time-nuts] Picket fence technique

[Didier Juges]

Dr Bruce Griffiths wrote:
> Using a GPS timing receiver to quantify the long term stability of an 
> oscillator whose frequency is not a harmonic of 1Hz, then the technique 
> of dividing the oscillator frequency down to 1Hz and logging the time 
> delay between the GPS derived PPS pulse and the leading edge of the 
> divided down reference frequency will incur several phase wraps during 
> the monitoring period. Worse than this if one is using a TIC with a 
> finite dead time (eg HP5370A/B) between measurements some the TIC will 
> not measure some of these intervals.
>
> These difficulties can be circumvented by using a picket fence technique 
> as devised by Greenhall to measuring beat frequencies in the paper:
>
> A Method for Using a Time Interval Counter
> to Measure Frequency Stability
> C. A. Greenhall
> Communications Systems Research Section

> ...
>   

> Bruce
>
>   
Bruce,

I suppose you are referring to this paper?

http://horology.jpl.nasa.gov/papers/picket_uffc.pdf

Didier