Chunk #7 — II. Methods and Material
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The coherence of x(t) and y(t) is defined as γxy(w)=Sxy(w)Sxx(w)Syy(w) where Sxx(w) and Syy(w) are auto-power spectral densities (PSDs) of x(t) and y(t), respectively, and Sxy(w) is their cross-power spectrum. Therefore, the MSC of x(t) and y(t) is defined as (5)MSCxy=γxy2(w)=Sxy2(w)Sxx(w)Syy(w).