[time-nuts] ADC sample voting algorithm?

David davidwhess at gmail.com
Thu Oct 6 01:40:07 EDT 2016

I always try to calculate things like the standard deviation and
peak-to-peak to get some idea if the measurement is valid.

A DSO with infinite persistence or envelope mode is great for tracking
this sort of thing down during development.  Only toy DSOs will lack

On Wed, 05 Oct 2016 22:24:09 -0700, you wrote:

>time-nuts at febo.com said:
>> That’s kind of why I’m going down the road of multiple samples - to see if
>> there’s anything to it. 
>I would hack up some way to grab a clump (say 10) of samples and print them 
>out where you can capture them on a PC and analyze them.
>I'd start by looking with the old Mark 1 eyeballs, then write hack code to 
>filter out the good stuff so I can see the bad/interesting cases.
>If you have a scope, it might be interesting to trigger on PPS and look at 
>the ADC trigger and input voltage.  If you have a digital scope with the 
>remember forever option, that would catch the delayed interrupt bug that Jim 
>Harman reported.

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