DTIC ADA130533: Parametric Acoustic Array Formation Via pdf

DTIC ADA130533: Parametric Acoustic Array Formation Via

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Description of the Book:

The effect of dispersion on parametric arrays formed by Gaussian beams is investigated via solutions of the nonlinear paraxial wave equation. Analytical solutions are obtained by employing the quasilinear approximation; the results are thus restricted to weakly nonlinear interactions. Both (i) collinear and (ii) noncollinear interactions of the primary beams are considered. (i) Axial field curves and farfield directivity patterns are presented for the difference-frequency signal resulting from collinear interaction of Gaussian beams

• Creator/s: Defense Technical Information Center
• Date: 6/1/1983
• Year: 1983
• Book Topics/Themes: DTIC Archive, Hamilton, Mark F, TEXAS UNIV AT AUSTIN APPLIED RESEARCH LABS, *Acoustic arrays, *Interactions, *Fluids, *Dispersions, Diffraction, Phased arrays, Wave equations, Approximation(Mathematics), Dissipation, Beams(Radiation), Curves(Geometry), Frequency, Gaussian quadrature, Nonlinear systems, Parameters

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