Conventional ultrasonic signal acquisition uses high voltage pulsers to transmit short and sharp pulses to piezoelectric crystals that are then converted into propagating ultrasonic waves, and these waves interrogate a medium and returning echoes are recorded if they return to the transducer. In this project, we research the use of the transmission of codes rather than pulses. We aim to achieve transmission of lower voltage signals while maintaining high SNR. Furthermore, the use of coding enables the discrimination of what the source of a particular signal was, and it is therefore possible to enable transmission on multiple transducers simultaneously.
