How do you measure the phase difference between two different signals?

How do you measure the phase difference between two different signals?

[Walter Roberson]

In pure Matlab, or with the Signal Processing Toolbox?

What exactly are the available inputs? Are the two signals time synchronized? Are they the same sampling frequency? The same duration?

[Arif]

Two input signals are the trigonometric function, say sine and cosine.

Answer 1

[James Ramm]

try; help angle

[Walter Roberson]

That would give you the phase angle of a complex value at a particular point.

Are you suggesting,

angle(complex(A,B))

for the two signals A and B ?

[Arif]

Please explain for the phase difference, when both signals are trigonometric function, say sin and cos?

[Paulo Silva]

http://en.wikipedia.org/wiki/Phase_(waves)

[James Ramm]

then simply do like wiki suggests:

A sine (or cosine) equation looks like y=Asin(wx-t) [or y=Acos(wx-t)]. The phase shift is "t." ("A" is the amplitude and "w" is the frequency.)

Compute the shift for each one and subtract, for y=0