Table 9. Average relative differences in signal energy of 6 synthetic ECGs (Syn00-Syn05).

Original SNR	Noise Type	Denoising Method
		IEMD -ATD	UT-H	UT-S	Cust-H	Cust-S
-5 dB	ECN	1.449	1.506	1.431	1.515	1.491
	EMG	0.377	0.136	-0.015	0.856	0.500
	WN	-0.042	-0.357	-0.382	0.395	-0.203
	HN	0.463	0.387	0.185	0.523	0.336
-2 dB	ECN	0.721	0.724	0.670	0.729	0.713
	EMG	0.110	0.109	-0.006	0.467	0.273
	WN	0.097	-0.144	-0.230	0.214	-0.123
	HN	0.207	0.224	0.019	0.275	0.149
2 dB	ECN	0.227	0.266	0.245	0.265	0.260
	EMG	0.083	0.033	-0.119	0.193	0.076
	WN	0.037	-0.157	-0.352	0.081	-0.187
	HN	0.053	0.042	-0.104	0.062	-0.014
5 dB	ECN	0.091	0.090	0.067	0.089	0.083
	EMG	0.039	0.009	-0.111	0.106	0.032
	WN	0.015	-0.017	-0.200	0.054	-0.102
	HN	0.017	-0.015	-0.153	0.003	-0.057
10 dB	ECN	0.015	0.021	0.009	0.021	0.018
	EMG	0.006	0.022	-0.047	0.034	0.011
	WN	0.005	-0.034	-0.193	0.001	-0.100
	HN	-0.004	0.001	-0.075	0.005	-0.025