Noise Suppression in ECG Signals through Efficient One-Step Wavelet Processing Techniques

Table 1

BW suppression analysis.

𝐹𝑠 (Hz)	𝑁	𝐹𝑤 (Hz)			SNR for estimated BW
			𝐴4	𝐴5	𝐴6	𝐴7	𝐴8	𝐴9	𝐴10	𝐴11	𝐴12
250	5400	0.15	1.866	6.563	12.579	25.986	25.484	7.826	−7.957	−8.948	−9.199
		0.19	1.866	6.563	12.570	25.636	22.445	−0.216	−8.630	−9.072	−9.193
		0.23	1.866	6.563	12.555	24.591	16.422	2.536	−8.981	−9.003	−9.035
		0.27	1.866	6.563	12.548	23.882	10.589	−7.621	−8.874	−8.943	−8.977
		0.31	1.866	6.563	12.561	24.063	6.442	−8.311	−8.886	−9.212	−9.339
500	10800	0.15	0.612	4.491	10.172	16.583	30.755	24.674	5.845	−9.762	−10.373
		0.19	0.612	4.491	10.170	16.541	29.129	21.425	−2.123	−10.440	−10.866
		0.23	0.612	4.491	10.168	16.485	26.036	14.864	0.825	−10.778	−10.796
		0.27	0.612	4.491	10.168	16.469	25.625	8.869	−9.412	−10.669	−10.750
		0.31	0.612	4.491	10.170	16.521	25.237	4.688	−10.16	−10.726	−10.064
1000	21600	0.15	0.104	1.040	5.684	11.679	18.344	33.993	23.436	4.831	−10.805
		0.19	0.104	1.040	5.684	11.678	18.319	31.447	20.792	−3.154	−11.545
		0.23	0.104	1.040	5.684	11.677	18.271	26.531	13.913	−0.238	−11.897
		0.27	0.104	1.040	5.684	11.677	18.255	24.680	7.822	−10.512	−11.771
		0.31	0.104	1.040	5.684	11.679	18.300	25.393	3.629	−11.258	−11.807