amirand2003
Newbie level 1
Minimum in Coherence
Hi,
I have a question about the relation between minimum in coherence function and PSDs.
Suppose we have two random signals 1 and 2. We have calculated S11, S22 and S12 which are the one-sided PSDs. We have also calculated the coherence function (G) as :
G=|S12|²/(S11*S22)
I have plotted the S11, S22 and G in one diagram. I can see that minimum in G is somehow related to the minimum in S11 or S22, but I can not prove it.
Can anyone help?
Hi,
I have a question about the relation between minimum in coherence function and PSDs.
Suppose we have two random signals 1 and 2. We have calculated S11, S22 and S12 which are the one-sided PSDs. We have also calculated the coherence function (G) as :
G=|S12|²/(S11*S22)
I have plotted the S11, S22 and G in one diagram. I can see that minimum in G is somehow related to the minimum in S11 or S22, but I can not prove it.
Can anyone help?