An Efficient Porcine Acoustic Signal Denoising Technique Based on EEMD-ICA-WTD

Table 5

Denoising results of porcine cough.

SNRin	Parameter	Denoising methods
		EMD-TD	EMD-WTD	EEMD-TD	EEMD-WTD	WSTD	MBSS	EEMD-ICA-WTD
−10	RMSE	0.4216	0.3100	0.3245	0.3163	0.3417	0.4775	0.3025
	SNRout/dB	−2.4745	0.1955	−0.1995	0.0217	−0.6479	−2.9245	0.2213
	R	0.2337	0.4732	0.4832	0.4951	0.4389	0.2183	0.4978
−5	RMSE	0.3447	0.2629	0.2666	0.2773	0.2946	0.3341	0.2442
	SNRout/dB	−0.7254	1.6290	1.5076	1.1645	0.6390	−0.4762	1.9498
	R	0.3903	0.6406	0.6656	0.6736	0.6075	0.4097	0.6752
0	RMSE	0.4168	0.2048	0.2464	0.2042	0.2423	0.2658	0.1880
	SNRout/dB	−2.3755	3.7967	0.1914	3.8236	2.3360	2.1935	4.0920
	R	0.2767	0.7936	0.7359	0.8310	0.8257	0.7016	0.8353
5	RMSE	0.3941	0.1298	0.2762	0.1343	0.1362	0.1407	0.1224
	SNRout/dB	−1.8887	7.7609	1.1993	7.4601	7.3379	7.2837	7.9737
	R	0.2712	0.9237	0.7403	0.9332	0.9293	0.8819	0.9360
10	RMSE	0.2777	0.0721	0.0952	0.0692	0.0842	0.0743	0.0646
	SNRout/dB	2.1711	13.8798	11.4739	14.2417	12.5417	13.7961	14.6788
	R	0.6897	0.9805	0.9689	0.9854	0.9828	0.9829	0.9859