title: Extraction of statistical properties of the point source response of a reverberant plate and application to parameter estimation (L).
abstract: The point source response of a reverberant solid plate is modeled through a nonstationary Poisson process based on the image-source method. The theoretical expectation of the envelope is then derived, taking into account the dispersive nature of plate waves, and validated by numerical results. Least-square curve-fitting applied to an ensemble average over N realizations can then be used to identify useful parameters such as wave velocity, plate surface, or source-receiver distance. It is shown that even values of N down to 1 (no averaging) allow a satisfying identification. Application to the estimation of the source-receiver distance using a single sensor is finally highlighted to illustrate the promising potentialities of the measurement principle proposed.
authors.affiliation: IEMN UMR CNRS 8520, Université de Valenciennes et du Hainaut-Cambrésis, F59313 Valenciennes cedex 9, France. emmanuel.moulin@univ-valenciennes.fr
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Moulin
authors.forename: Hossep
authors.initials: H
authors.lastname: Achdjian
authors.forename: Jamal
authors.initials: J
authors.lastname: Assaad
authors.forename: Najib
authors.initials: N
authors.lastname: Abou Leyla
authors.forename: Karl
authors.initials: K
authors.lastname: Hourany
authors.forename: Youssef
authors.initials: Y
authors.lastname: Zaatar
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D003198:Computer Simulation; D004867:Equipment Design; D005583:Fourier Analysis; D016018:Least-Squares Analysis; D015233:Models, Statistical; D009038:Motion; D009716:Numerical Analysis, Computer-Assisted; D016012:Poisson Distribution; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted; D013016:Sound; D014732:Vibration