This paper presents a numerical method of tracing of sound or other refracted rays through a medium with arbitrarily varying refractive index. The method uses a radial basis function (RBF) network to define the refractive index of the medium, allowing continuous gradients to be determined analytically and the ray path to be solved using standard numerical ordinary differential equation (ODE) solution techniques.
Ray Tracing Using Radial Basis Function Networks
Contributed by the Noise Control and Acoustics Division of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received June 26, 2015; final manuscript received January 5, 2016; published online February 3, 2016. Assoc. Editor: Ronald N. Miles.
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Wiens, T. (February 3, 2016). "Ray Tracing Using Radial Basis Function Networks." ASME. J. Vib. Acoust. April 2016; 138(2): 024502. https://doi.org/10.1115/1.4032514
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