Relation between the EPSP and the Learning Window

The power spectrum is the Fourier transform of the effective learning window W0, which in turn is the convolution of the learning window W and the EPSP ε. The figure shows the learning windows required for SFA for three different EPSP durations (τ = 4, 40, 400 ms). The maximal input frequency νmax was 1 / (40 ms) in all plots.




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