Noise diagnostic system

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36441321, 73587, 73602, 73646, 367 1, 367 8, 367 13, 367 52, 367129, 367901, H04B 1500

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active

057128057

ABSTRACT:
A method for reconstructing the acoustic field on the surface of a vibrating object based on measurements of the radiated acoustic pressure includes solving the Helmholtz equation directly using the expansion of a set of independent functions that are generated by the Gram-Schmidt orthonormalization with respect to the particular solutions to the Helmholtz equation. The coefficients associated with these independent functions are determined by requiring the assumed form of solution to satisfy the pressure boundary condition at the measurement points. The errors involved in these coefficients are minimized by the least squares method. Once these coefficients are specified, the acoustic pressure at any point, including the source surface, is completely determined.

REFERENCES:
patent: 3658147 (1972-04-01), Ho et al.
patent: 4012689 (1977-03-01), Cox et al.
patent: 4305295 (1981-12-01), Andersson et al.
patent: 4445389 (1984-05-01), Potzick et al.
patent: 4592034 (1986-05-01), Sachse et al.
patent: 4598366 (1986-07-01), Devaney
patent: 5170433 (1992-12-01), Elliot et al.
patent: 5285675 (1994-02-01), Colgate et al.
patent: 5347586 (1994-09-01), Hill et al.
patent: 5365541 (1994-11-01), Bullock
patent: 5381381 (1995-01-01), Sartori et al.
patent: 5519637 (1996-05-01), Mathur
The Use of Mathematical-Statistics Methods in the Solution of Incorrectly Posed Problems, May-Jun. 1971, V.F. Turchin et al.
An Iteration Formula Integral Equations of the First Kind, 1951, L. Landweber.
On the Naumerical Solution of Fredhold Integral Equations of the First Kind by the Inversion of the Linear Systems Produced by Quandrature, 1963, S. Towmey.
Well-Posed Stochastic Extensions of Ill-Posed Linear Problems, 1970, Joel N. Franklin.
Sound Source Reconstructions Using a Microphone Array, 1980, Earl G. Williams, et al.
Nearfield Accoustic Holography: I. Theory of Generalized Holography and the Development of NAH, 1985, J.D. Maynard et al.
Nearfield Accoustic Holography (NAH) II. Holographic Reconstruction Algorithms and Computer Implementation, 1987, W.A. Veronesi and J.D. Maynard.
Generalized Nearfield Acoustical Holography for Cylindrical Geometry: Theory and Experiment, 1987, Earl G. Williams and Henry D. Dardy.
Conformal Generalized Near-Field Acoustic Holography for Axisymmetric Geometrics, 1990, Girgio V. Borgiotti.
Broadband Acoustic Holography Reconstruction from Acoustic Intensity Measurements. I: Principle of the Method, 1988, Thierry Loyau and Jean-Claude Pascal.
Near Field Acoustic Holography for an Axisymmetric Geometry: A New Formulation, 1990, Sarkissian.
Acoustic Radiation from Finite Structures, 1991, Sarkissian.
Reconstruction of the Surface Acoustic Field on Radiating Structures, 1992, Sarkissian.
Digital Holograhpic Reconstruction of Sources with Arbitrarily Shaped Surfaces, 1989 W.A. Veronesi and J.D. Maynard.
3-D Sound Source Reconstruction and Field Reprediction Using the Helmholz Integral Equation, 1990, G.T. Kim and B.H. Lee.
Application of BEM (Boundary Element Method) Based Acoustic Holography to Radiation Analysis of Sound Sources with Arbitrarily Shaped Geometrics, 1992, Mingsian R. Bai.
An Implant Least Square Method for the Inverse Problem of Acoustic Radiation, '1987, Yei-Chin Chao.
A Noise Source Identification Technique Using an Inverse Helmholtz Integral Equation Method, 1988, B.K. Gardner and R.F. Bernhard.
A Technique for the Numerical Solution of Certain Integral Equation of the First Kind, 1962, David L. Phillips.
Broadband Nearfield Acoustical Holography for Vibrating Cylinders, 1988, Williams, et al.
A Three-Dimensional Acoustic Infinite Element Based on a Prolate Spheroidal Multiple Expansion, 1993, David S. Burnett.

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