Figure 6
From: State space methods for phase amplitude coupling analysis
Modulation phase \(\phi ^{\text {mod}}\) estimation and comparisons with standard methods (black), DAR (pink) and SSP (blue). 400 windows of 6 s were generated with: a slow oscillation (filtered from white noise around \(f_{\text {s}}= 1\) Hz with bandwidth \(\Delta f_{\text {s}}^{\text {gen}}\), normalized to standard deviation \(\sigma _{\text {s}}\)) and a modulated fast oscillation (\(\phi ^{\text {mod}}=-\pi /3\), modeled with a sinusoid \(f_{\text {s}}=10\) Hz and normalized to \(\sigma _{\text {f}}\)). We added unit normalized Gaussian noise and we used 3 Signal To Noise Ratio (SNR) conditions (\((\sigma _{\text {s}},\sigma _{\text {s}})=(2,1.5)\), (1, 0.6) and (0.7, 0.3)). We show typical signal traces for these different conditions Fig. S7.
