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

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?

[Vitor Garcia]

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

Answer 1

[Matt Gaidica]

Because you unwrapped it.