Fundamental frequency estimation in atrial fibrillation signals using correntropy and Fourier Organization Analysis - Barquero-Pérez O; Sörnmo L; Goya-Esteban R; Mora-Jiménez I; García-Alberola A; Rojo-Álvarez JL (2012 3rd International Workshop On Cognitive Information Processing, Cip 2012, 2012)