Abstract

Based on a very accurate temporal and spatial sampling of the radiated intensity and pressure field over a thin vibrating aluminium plate, different scanning procedures and patterns have been simulated by averaging subsets of the basic data. In general, the different simulated scanning patterns gave almost identical results in very good agreement with the ‘ideal’ averaging i.e. averaging all data. Changing the line density, changing the starting point, excluding data at the edges and not scanning after straight lines gave far less deviations than the deviations in the ‘ideal’ averaged intensities with increasing background noise levels.

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