A fast and uniform procedure for computing time-harmonic pressures and transients for ultrasound transducers

A fast procedure for calculation of spatial impulse responses for linear sound fields is presented. The procedure applies to transducers, which can be represented by a set of convex polygons and it is tailored to exploit data level parallelism as well as concurrency. The procedure is implemented on a modern single instruction, multiple data (SIMD) architecture and used for computing time-harmonic and transient pressure fields. It can be used for both near and far field simulations, since it uses the well known technique of calculating the spatial impulse response from the intersection of a circle emanating from a projected spherical wave with the boundary of the emitting elements. Finally, the performance and accuracy is compared to current state-of-theart simulation methods including a fast implementation using the far field approach.