Wave Propagation in a Randomly Layered Medium

by Werner Kohler, Virginia Tech, Blacksburg, United States,
George Papanicolaou, Virginia Tech, Blacksburg, United States,
Benjamin White, Virginia Tech, Blacksburg, United States,



Document Type: Proceeding Paper

Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability

Abstract: The authors briefly outline a problem discussed at length in a paper called Frequency content of randomly scattered signals, by M. Ash, W. Kohler, G. Papanicolaou, M Postel and B. White. A randomly layered half space is illuminated by a pulsed acoustic source. The constitutive parameters of the layered region are assumed to vary on two very different spatial scales, a slow deterministic variation that models large-scale refractive effects and a rapid zero mean random variation that models (generally unknown) constitutive parameter fine structure.

Subject Headings: Layered systems | Acoustic techniques | Wave propagation | Constitutive relations | Parameters (statistics) | Scale models | Structural models | Wave equations

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