Abstract
This study examines the estimation of the surface impedance of an absorber with microphone arrays. Two array geometries are compared - a rigid spherical array and a double layer planar array. The impedance is estimated via reconstructing the sound field (pressure and particle velocity) on the absorber's surface, using a plane wave expansion. The comparison is carried out by studying the numerical properties of the two arrays as well as through experimental tests.
Original language | English |
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Journal | Journal of the Acoustical Society of America |
Volume | 146 |
Issue number | 1 |
Pages (from-to) | 501-504 |
ISSN | 0001-4966 |
DOIs | |
Publication status | Published - 1 Jul 2019 |