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. Author manuscript; available in PMC: 2017 Feb 28.
Published in final edited form as: J Bioeng Biomed Sci. 2016 Sep 15;6(4):202. doi: 10.4172/2155-9538.1000202

Table 2.

A summary of NRMSE analysis of simulated and actual VCG signals for different SNR. The NRMSE values are reported as: Median (IQR, Range). Here, the range is defined as the difference between 1st and 99th percentiles.

Signal-to-Noise Ratio (dB)
−10 −6 −3 0 3 6 10 without noise
Simulated VCG
with constant
frequencies 		PCT 1.93
(1.50, 4.67)		 1.03
(0.84, 2.99)		 0.76
(0.72, 1.99)		 0.43
(0.64, 1.59)		 0.43
(0.61, 1.04)		 0.31
(0.43, 0.91)		 0.09
(0.32, 0.72)		 0.02
(0.00, 0.00)
SPWVD 0.98
(0.49, 2.15)		 0.86
(0.38, 1.31)		 0.73
(0.50, 1.21)		 0.55
(0.54, 1.23)		 0.56
(0.46, 0.99)		 0.50
(0.41, 0.89)		 0.38
(0.41, 0.72)		 0.03
(0.00, 0.00)
Simulated VCG
with varying
frequency 		PCT 0.67
(0.72, 2.13)		 0.30
(0.16, 1.03)		 0.28
(0.10, 0.27)		 0.29
(0.06, 0.18)		 0.28
(0.05, 0.16)		 0.28
(0.03, 0.13)		 0.28
(0.02, 0.08)		 0.29
(0.00, 0.00)
SPWVD 0.59
(0.54, 1.30)		 0.32
(0.23, 1.06)		 0.28
(0.13, 0.46)		 0.24
(0.08, 0.30)		 0.23
(0.06, 0.16)		 0.23
(0.05, 0.14)		 0.23
(0.03, 0.12)		 0.23
(0.00, 0.00)
Actual
VCG 		PCT 3.00
(2.37, 6.83)		 1.09
(1.95, 5.16)		 0.32
(0.77, 3.10)		 0.18
(0.19, 1.09)		 0.08
(0.11, 0.34)		 0.05
(0.04, 0.22)		 0.03
(0.01, 0.14)		 N/A
SPWVD 1.76
(1.24, 2.93)		 1.05
(0.88, 2.70)		 0.40
(0.54, 1.93)		 0.26
(0.22, 1.11)		 0.17
(0.19, 0.45)		 0.10
(0.18, 0.41)		 0.06
(0.18, 0.29)		 N/A