[time-nuts] Collecting raw timing data

Jeff Mock jeff at mock.com
Wed Nov 28 01:12:22 EST 2007


Bruce Griffiths wrote:
> Jeff Mock wrote:
>> Thanks so much, your description of collecting the raw timing data is 
>> really clear.  I like the technique of doing timing interval 
>> measurements from a slower known reference on one channel to a DUT on a 
>> second channel.  This definitely gets me started.
>>
>> jeff
>>
>>   
> An algorithm for unabiguously unwrapping the rollovers can be found in:
> http://horology.jpl.nasa.gov/papers/picket_uffc.pdf
> 

Thanks, that's a nice paper, 3-pages, lots of short declarative 
sentences that make sense.  As I understand the problem, Fig. 1 in this 
paper is the key for collecting good data for measuring Allan variance.

jeff




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