why the phase obtained with Hilbert transform and phase unwrap is different from the actual phase?

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Hui Sun on 14 Jul 2016

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Answered: Matt Gaidica on 31 Mar 2022

I am trying to get the phase of the time signal with Hilbert transform and phase unwrap,

timesignal=cos(phase);

H=hilbert(timesignal);

p=unwrap(angle(H));

why is the unwrapped phase progressive increase， why is it different from the actual phase?

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Vitor Garcia on 2 Jun 2017

Hey! Could find the solution for your problem? I have the same question...

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Matt Gaidica on 31 Mar 2022

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Because you unwrapped it.

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