[evlatests] Sensitivity of 3-bit vs. 8-bit

[Michael Rupen]

Brent said that

   1- an ideal sampler would give a noise level 3.5% higher than
     a perfect analog system

   2- his simulations show that a sampler with levels mis-set enough
     to give the state count histograms we see would give a noise
     level 10-15% higher than a perfect analog system

We are comparing a real 3-bit to a real 8-bit sampler, rather than
a simulated (or ideal) sampler to a perfect analog system.  At the moment
I would say that our noise results are consistent with what Brent's
simulations predict, given the observed (3-bit) state counts.  There
are still several outstanding questions, so we continue testing, but
that's the current status.


                    Michael

>
> since we're being careful here, i thought the expected (as per brent's
> input to the discussion yesterday) was 3.5%, not 5%?
>
> note that the median of all the degradation numbers is 6.5%, very close
> to the average of 6.56%...
>
> 	-bryan
>
>
> Rick Perley wrote, On 5/10/11 14:07 PM:
>>
>> A value of 5% would be considered expected.
>>
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