Abstract
Although the HELS method has exhibited a great promise in reconstructing the acoustic fields in both exterior and interior regions, the accuracy in reconstruction for an arbitrarily shaped structure can be unsatisfactory. This is because the expansion based on the spherical waves for an acoustic field generated by on an arbitrarily shaped surface is incomplete.
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Wu, S.F. (2015). Combined Helmholtz Equation Least-Squares (CHELS) Method. In: The Helmholtz Equation Least Squares Method. Modern Acoustics and Signal Processing. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-1640-5_6
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DOI: https://doi.org/10.1007/978-1-4939-1640-5_6
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