Randomized excitation: A novel ultrasound array excitation scheme

This paper provides a simulation study into the use of a novel method of ultrasound array excitation referred to as randomized excitation. This technique provides a solution for temporal ultrasound power/intensity control across an ultrasound array. This technique particularly differs from other previously reported solutions as elements are randomly switched, spatially across the array and temporally in time. Simulations show this excitation scheme to be capable of producing fine temporal control of the transmitted ultrasound power at the focal region. This paper covers the basics of randomized excitation implementation, simulation results and future potential applications of randomized excitation.