Quantitatively compare FFTs in Matlab

4 views (last 30 days)
Mark O'Sullivan
Mark O'Sullivan on 18 Apr 2017
I have multiple FFTs as seen in the pic. The blue trace is my control trace (my gold standard). I want to quantitatively compare the coherence between the other traces and the blue trace.
I am aware of mscohere (magnitude squared coherence), but this function computes the power spectrum estimates using Welchs method and then compares the resulting spectrums.
I want to compare the exact FFT data seen below.
The FFT data is 251 samples in length with 250 fs.
Is there a method to compare the coherence of the FFT data as I have it?

Sign in to answer this question.

Answers (0)

Categories

Find more on Spectral Analysis in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!