phase error correction

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sonam_ragipani

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hi,

I want to find frequency by using phase of the signal.But, if the phase has got an error of suppose +2degrees, I am detecting a phase of 359 deg as 1 deg. how to resolve this issue. can someone please help me.
 

sonam_ragipani said:
I want to find frequency by using phase of the signal.
Click to expand...

The closest thing I can picture...

Is to (a) sample however much of the waveform you can, then (b) apply some algorithm which finds how to match it to a sinewave at the correct frequency and phase.

There is an axiom that says if you draw three random points, there is one and only one circle which contains those points. I imagine the same applies to a sinewave, since it is closely related to a circle.
 

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