[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?
--
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