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".
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