Table 1 Comparison of MPE, SURE-based... | Emerald Publishing

Table 1

Comparison of MPE, SURE-based shrinkage estimator and Wiener filter (WF) for different input SNRs. The output SNR values are averaged over 100 noise realizations.

Input	Output SNR (dB)
SNR		MPE		SURE	WF
(dB)	ϵ = 3.5σ	ϵ = 2.5 σ	ϵ = 1.5 σ
–5.0	11.67	5.99	–0.18	–0.27	1.44
–2.5	14.42	8.62	2.34	2.23	3.96
0	17.02	10.96	4.80	4.71	6.35
2.5	19.08	13.36	7.31	7.21	8.79
5.0	21.25	15.52	9.72	9.64	11.09
7.5	22.93	18.26	12.32	12.23	13.60
10.0	25.34	20.57	14.77	14.69	15.92
12.5	26.91	22.79	17.26	17.17	18.20
15.0	28.77	25.05	19.66	19.59	20.33
17.5	30.74	27.44	22.20	22.12	22.57
20.0	32.65	29.61	24.61	24.54	24.60

Input	Output SNR (dB)
SNR		MPE		SURE	WF
(dB)	ϵ = 3.5σ	ϵ = 2.5 σ	ϵ = 1.5 σ
–5.0	11.67	5.99	–0.18	–0.27	1.44
–2.5	14.42	8.62	2.34	2.23	3.96
0	17.02	10.96	4.80	4.71	6.35
2.5	19.08	13.36	7.31	7.21	8.79
5.0	21.25	15.52	9.72	9.64	11.09
7.5	22.93	18.26	12.32	12.23	13.60
10.0	25.34	20.57	14.77	14.69	15.92
12.5	26.91	22.79	17.26	17.17	18.20
15.0	28.77	25.05	19.66	19.59	20.33
17.5	30.74	27.44	22.20	22.12	22.57
20.0	32.65	29.61	24.61	24.54	24.60