TY - JOUR AU - Kelly, James F. AU - McGough, Robert J. PY - 2005/09/01 Y2 - 2024/03/29 TI - A time-space decomposition method for fast calculations of transient pressure fields generated by ultrasound phased arrays JF - Canadian Acoustics JA - Canadian Acoustics VL - 33 IS - 3 SE - Proceedings of the Acoustics Week in Canada DO - UR - https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1767 SP - 106-107 AB - A rapid single integral approach has been developed for computing the time domain pressure generated by a baffled circular piston. A time domain solution to the lossless wave equation can be derived subject to an input pulse, which models the uniform normal velocity of the piston. A linear array of 129 circular elements is simulated with pistons of radius (0.30mm) and interelement spacing (0.90mm). It is concluded that an exact time-domain solution forms the basis for array simulations, which is accelerated by decomposing the spatial dependence of the integrand. ER -