[time-nuts] simulation of interconnected clocks

[Jim Lux]

On 11/30/13 2:15 PM, Tom Van Baak wrote:
> Jim,
>
> Could you just replay real data instead of trying to generate simulated data? There's plenty of storage with Arduino or SD card shields.
>
> Attached is frequency and ADEV of my heart beat for 10 hours. You could do the same. In this case the flicker floor is just under 1e-1 from 10s to 10ks.
>

The flat zero slope adev shows the basic 1/f characteristic reported in 
the literature.  There's been quite a few people who have hooked up 
monitors to people for 24 hours or more and found that the power 
spectrum of heart rate follows 1/f from about 0.3 Hz down 4 decades at 
least.


I'm not sure what the ADEV/Power spectrum of respiration rate would be, 
since it's mostly determined by what the person is doing.  Power 
spectrum (averaged over a long time) would probably be more a histogram 
of "level of physical activity".