Teaching real-time ultrasonic imaging with a 4-channel sonar array, TI C6711 DSK and MATLAB

George W.P. York, Thad B. Welch, Cameron H.G. Wright

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Ultrasonic medical imaging courses often stop at the theory or MATLAB simulation level, since professors find it challenging to give the students the experience of designing a real-time ultrasonic system. Some of the practical problems of working with real-time data from the ultrasonic transducers can be avoided by working at lower frequencies (sonar to low ultrasound) range. To facilitate this, we have created a platform using the ease of MATLAB programming with the real-time processing capability of the low-cost Texas Instruments C6711 DSP starter kit and a 4-channel sonar array. With this platform students can design a B-mode or Color-Mode sonar system in the MATLAB environment. This paper will demonstrate how the platform can be used in the classroom to demonstrate the real-time signal processing stages including beamforming, multi-rate sampling, demodulation, filtering, image processing, echo imaging, and Doppler frequency estimation.

Original languageEnglish
Pages (from-to)370-375
Number of pages6
JournalBiomedical Sciences Instrumentation
Volume41
StatePublished - 2005

Keywords

  • B-mode
  • Beamforming
  • C6711
  • Color-mode
  • MATLAB
  • Sonar
  • Ultrasound

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