Bayesian sequential estimation applied to three-microphone tube data with circumferential sensors extends valid frequency range for porous media characteristic impedance and propagation coefficient by handling observed phase discontinuities.
With hard tube walls, the boundary condition atr=ais that the radial velocityv r = 0 (Rienstra, 2015)
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Bayesian characterization of porous media using three-microphone tube method in extended frequency ranges
Bayesian sequential estimation applied to three-microphone tube data with circumferential sensors extends valid frequency range for porous media characteristic impedance and propagation coefficient by handling observed phase discontinuities.