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Array measurements have become a valuable tool for site response characterization in a non-invasive way.
The experimental validation of the beamforming technique applied to microphone array measurements is investigated in this paper.
These examples demonstrate the usefulness of array measurements for producing detailed information pertaining to the characteristics of individual sound sources.
The results of microphone array measurements are used to illustrate sound levels by flow interactions with a pantograph.
In this study, ultrasonic array measurements coupled with a modified signature analysis method were implemented for damage detection purposes.
Array measurements of ambient noise have become a useful technique to estimate the surface wave dispersion curves and subsequently the subsurface elastic parameters that characterize the studied soil.
Array measurements of microtremors were carried out at thirty sites in Damascus city, Syria to estimate S-wave velocity structures of shallow soil formations for site effect analysis.
These comprise source localisation using two-dimensional acoustic array measurements and assessment of the wayside noise increase as a function of the speed.
Comparisons are drawn against nacelle unsteady pressure transducer measurements at two axial locations as well as against near- and far-field microphone array measurements outside the duct.
In inverse acoustics, the reconstruction of (distant) sound fields from microphone array measurements is fundamentally limited by the size of the array and by the microphone density.
The characteristics peculiar to microphone arrays will be mentioned only briefly here, because the theoretical background of array measurements is available in other publications.
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