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. Author manuscript; available in PMC: 2019 Dec 30.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2015 Jan;62(1):152–164. doi: 10.1109/TUFFC.2014.006578

Table I.

Relative bias, coefficient of variation (COV), and root mean squared error (RMSE) of acoustic pulse parameters for FPIFO hydrophones expressed as percentages, obtained using the traditional scaling method (“Scale”) and deconvolution based on three forms of sensitivity: direct complex measurement (“Direct”), magnitude (“Mag”), and phase estimated from minimum phase principle (“MP”). G: Gaussian global low-pass filter exp(−f2/2σ2) with σ = 35 MHz. W: Wiener Filter. R: Rectangular rarefactional low-pass filter with ΔF = 20 MHz, corresponding to ΔT = 0.05 μs.

Method Filters p+ p PII
Bias COV RMSE Bias COV RMSE Bias COV RMSE
Scale 163 18 169 113 53 161 126 20 134
Scale G 108 13 111 81 51 123 97 19 104
Direct G 24 11 27 48 21 58 33 17 40
Direct G, W 24 11 27 48 22 58 33 17 40
Direct G, R 24 11 27 15 11 20 29 16 36
Mag G, R 38 14 41 11 29 35 29 16 36
MP G, R 42 12 46 3 24 25 29 16 36