... 20 06 11: 46 1 96 Chan-Horizon Azuaje˙Book Nonlinear Filtering Techniques [45] [ 46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [ 56] [57] [58] [59] [60 ] [61 ] [62 ] [63 ] [64 ] [65 ] Lehnertz, K., and ... 20 06 11: 46 Chan-Horizon 6. 5 Model-Based Filtering Azuaje˙Book 187 Figure 6. 6 Demonstration of ICA noise reduction for γ = 10: (a) original noise-free ECG signal, x(t); (b) χ -optimized noise-reduced ... 2003, pp 61 6 62 7 Pincus, S M., and A L Goldberger, “Physiological Time-Series Analysis: What Does Regularity Quantify?” Am J Physio Heart Circ Physiol., Vol 266 , 1994, pp H 164 3–H 165 6 Costa, M.,...