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Open-Source FPGA Coprocessor for the Doppler Emulation of Moving Fluids.

Stefano Ricci1

  • 1Information Engineering Department, University of Florence, 50139 Florence, Italy.

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This summary is machine-generated.

This study introduces an open-source coprocessor for generating synthetic ultrasound signals of fluid flow. This FPGA-based system offers a more accurate and efficient alternative to traditional flow-rigs in Doppler ultrasound testing.

Keywords:
FPGAVHDLdoppler ultrasoundelectronic doppler phantomembedded coprocessor

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Area of Science:

  • Embedded Systems Engineering
  • Biomedical Signal Processing
  • Ultrasound Technology

Background:

  • Embedded systems are increasingly capable of complex computations, often utilizing specialized coprocessors.
  • Current methods for testing Doppler ultrasound systems, such as flow-rigs, are often complex and lack accuracy.

Purpose of the Study:

  • To present an open-source coprocessor for real-time synthetic ultrasound echo generation.
  • To demonstrate its integration into an embedded system for simulating fluid flow.
  • To provide a more accurate and efficient alternative for Doppler ultrasound system testing.

Main Methods:

  • Implementation of a dedicated coprocessor on a Field Programmable Gate Array (FPGA).
  • Integration of the coprocessor into a broader embedded system architecture.
  • Development of standard interfaces for system integration.

Main Results:

  • The coprocessor successfully generates synthetic signals mimicking ultrasound echoes from moving fluids.
  • Experimental validation confirmed its capability to emulate fluid flow in a pipe for echographic Doppler systems.
  • The embedded system demonstrated a viable replacement for traditional flow-rigs.

Conclusions:

  • The developed open-source coprocessor provides a powerful tool for the real-time simulation of ultrasound-based fluid flow measurements.
  • This FPGA-based solution enhances the accuracy and efficiency of testing Doppler ultrasound systems.
  • The system offers a significant advancement for laboratory testing in ultrasound research and development.