Difference Between Lock-In Amplifiers and other Coherence methods
Difference Between Lock-In Amplifiers and other Coherence methods
(OP)
Hello, I was wondering if somebody could explain to me the difference between using a lock-in amplifier and other signal coherence methods such as MSC. From my experience MSC is limited to the SNR. Are there any other methods that could produce signal detection in very low SNR, very low being -20 dB or more.
RE: Difference Between Lock-In Amplifiers and other Coherence methods
Are you referring to Magnitude Squared Coherence? A quick search shows that is more for higher frequency signals that probably don't have the 1/f problem. Others may chime in with more info.
Z