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Fig. 12 | SpringerPlus

Fig. 12

From: Efficient reference-free adaptive artifact cancellers for impedance cardiography based remote health care monitoring systems

Fig. 12

Comparison of the residual noise after IMA filtering (a). Original artifact component (b). Residual noise after LMS-updated AAC (c). Residual noise after exponential non-negative LMS (eN 2LMS)-updated AAC (d). Residual noise after SReN 2LMS-updated AAC (e). Residual noise after SEeN 2LMS-updated AAC (f). Residual noise after SSeN 2LMS-updated AAC (g). Residual noise after normalized non-negative LMS (N 3LMS)-updated AAC (h). Residual noise after SRN 3LMS-updated AAC (i). Residual noise after SEN 3LMS-updated AAC, and (j). Residual noise after SSN 3LMS-updated AAC. (The x-axis is the number of samples and the y-axis is the residual noise amplitude in mV)

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