I have a signal sampled from a hardware, s
. I would like to compute the coherence of the sampled signal given a single frequency, f
. Below are the approaches I can think of.
- Base on
f
generate a synthetic signal and compute the coherence ofs
and the synthetic signal. - Use
SNR
similar approach with frequency range[f - a, f + a]
to compute theSNR
ofs
as its coherence level, wherea
is a threshold.
I know both approach are not the right way to do it. There are just the possible solutions come to my mind. I would like to know how to do it right.
s
. But I'm given a desired signal frequencyf
for ideal case. I would like to compute how close the signals
with the ideal case. Perhaps coherence is not the right word here. $\endgroup$ – NcJie May 27 '13 at 8:50s
is not a pure sinusoid, it can be any signal polluted by noise. The objective is to compute the level of frequencyf
with a threshold,a
in signals
. If all frequency ins
fall into[f - a, f + a]
then it should give 1.0 $\endgroup$ – NcJie May 27 '13 at 13:06