Figure 1

Results of the simulation study. (a) Results from only two signals. Actual time delay was$\mathcal{T}=7.28$ s. Highest coherence estimates γ₁₂(t;r) were obtained for r t₀ = 7.5 s. For r t₀ = 7.5 s, phase difference θ₁₂(t;r) and time delay${\mathcal{D}}_{\text{12}}(t;r)$ indices were almost zero. (b) Global results obtained considering all the 14 pairs of signals. Estimates${\mathcal{D}}_{\text{12}}^{\text{(m)}}+n{T}_{\text{R}}^{\text{(m)}}$ are plotted over actual time delay$\mathcal{T}$, for n ∈ {−1,0,1}. Owing to coherence analysis, the correct time delay values, those for n = 1, were selected. Red cross indicates time delay estimate for the signals whose results are shown in panel (a).