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

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Hui Sun
Hui Sun 2016-7-14
回答： Matt Gaidica 2022-3-31
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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回答（1 个）

Matt Gaidica
Matt Gaidica 2022-3-31
Because you unwrapped it.

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