Source Localization for Multiple Impacts Based on Elastodynamics and Wavelet Analysis
The aim of this paper is to present the method of identifying the impact location on the plate. This basic research has the purpose to achieve the human-interaction technology based on the signal processing, piezoelectric materials, and wave propagation. The work concerning the location identification of a single impact on the plate has been previously studied by means of the time frequency analysis applied to accelerometer signals. In this paper, a novel approach for the location identification of the discrete impact is presented to investigate the feasibility of applying to a human-interaction system. For the identification of the impact location, the major axisymmetry mode of the Lamb wave on the plate is used for this work.
S. K. Lee and J. H. Park, "Source Localization for Multiple Impacts Based on Elastodynamics and Wavelet Analysis", Applied Mechanics and Materials, Vols. 52-54, pp. 424-429, 2011