Abstract
We propose a method for determining the radiation pattern of an elongated source by near-field pressure measurements. The method is based on parameterization of the transducer by a set of spherical sources. The parameters (spherical-harmonic amplitudes determined by solving the inverse problem) are used to calculate the transducer radiation pattern. The main attention is paid to the case where the transducer has an elongated shape. The results of numerical simulations are reported.
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