Title :
Graphical simulation of superluminal acoustic localized wave pulses
Author :
Donnelly, Rod ; Power, Desmond ; Templema, Garth ; Whalen, Anthony
Author_Institution :
Fac. of Eng. & Appl. Sci., Memorial Univ. of Newfoundland, St. John´´s, Nfld., Canada
Abstract :
This paper investigates, graphically, a simulation of the launching of recently obtained superluminal localized wave solutions of the homogeneous wave equation. These solutions represent focused interference patterns that travel with speed greater than c in the direction of propagation. Graphical simulation indicates that approximations to these solutions may be launched from a finite array of point sources, and the superluminal nature of the launched pulses is maintained in the near field of the array.<>
Keywords :
acoustic signal processing; acoustic wave interference; acoustic wave propagation; digital simulation; wave equations; direction of propagation; finite array; focused interference patterns; graphical simulation; homogeneous wave equation; near field; point sources; superluminal acoustic localized wave pulses; superluminal localized wave solutions; Acoustic pulses; Acoustic waves; Councils; Fourier transforms; Interference; Noise measurement; Partial differential equations; Particle scattering; Power engineering and energy; Spatiotemporal phenomena;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
