Fig. 5
From: Fast time-varying linear filters for suppression of baseline drift in electrocardiographic signals
Schematic representation of realization of the LP filter by a cascade of two Lynn’s filters with knots inside QRS complexes. Buffer A a buffer of RR intervals (1.5N max length), buffer B a buffer of the input signal samples (1.5N max length), buffer C a buffer of the output signal from filter A (N max length), filter A a filter with impulse response 1 h(n) = {1, 1, 1,…, 1}, filter B a filter with impulse response 2 h(n) = {1, 1, 1,…, 1}, N 1 and N 2 odd numbers