[time-nuts] Measuring frequency

Hal Murray hmurray at megapathdsl.net
Sat Feb 24 03:02:04 EST 2007


If I understand things correctly, when a box like the 5334 takes a sequence 
of frequency measurements, each measurement has a start time and a stop time. 
 For each measurement, you get out the number of ticks (including fraction) 
on the input signal between those times converted into reasonable units.

What if a sequence of measurements combined the stop from one measurement 
with the start of the next measurement?  Then any error in one measurement 
has the same magnitude but opposite sign in the next measurement.  How much 
does that help in the downstream data processing?

That would be easy to implement that with a FPGA.

This seems like an obvious idea.  What's it called and/or what is a clump of 
non-linked measurements called?



-- 
These are my opinions, not necessarily my employer's.  I hate spam.






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