Flexible hardware architecture for the generation of ultrasound pulses in medical imaging
2016 IEEE International Ultrasonics Symposium (IUS), 2016•ieeexplore.ieee.org
A four-channel high-voltage transmitter chip for medical ultrasound imaging is reported. It
uses a 9-level pulse-shaping technique to improve signal quality and reduce distortion,
compared to both the traditional (linear) method and the multilevel solution with coarser
discretization. The proposed architecture requires minimum off-chip components and it is
scalable for more channels. Extensive chip-level simulations of the prototype chip response
to different test signals are in progress. Simulation results demonstrate circuit performance …
uses a 9-level pulse-shaping technique to improve signal quality and reduce distortion,
compared to both the traditional (linear) method and the multilevel solution with coarser
discretization. The proposed architecture requires minimum off-chip components and it is
scalable for more channels. Extensive chip-level simulations of the prototype chip response
to different test signals are in progress. Simulation results demonstrate circuit performance …
A four-channel high-voltage transmitter chip for medical ultrasound imaging is reported. It uses a 9-level pulse-shaping technique to improve signal quality and reduce distortion, compared to both the traditional (linear) method and the multilevel solution with coarser discretization. The proposed architecture requires minimum off-chip components and it is scalable for more channels. Extensive chip-level simulations of the prototype chip response to different test signals are in progress. Simulation results demonstrate circuit performance and reveal full functionality of the system. As a significant example, the device response to a linear frequency modulated chirp pulse signal with 4 μs duration and amplitude tapering is here presented.
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