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Related Experiment Videos

Transducer characterization from pressure amplitude distribution measurements using a Kalman filter as parameter

F M Linssen1, A P Hoeks

  • 1Dept. of Biophysics, University of Limburg, Maastricht, The Netherlands.

Ultrasonic Imaging
|October 1, 1990
PubMed
Summary

This study introduces a Kalman filter method to accurately estimate ultrasound transducer parameters. This improves the calculation of distorted reflected ultrasound pulses by analyzing sound field pressure distributions.

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Area of Science:

  • Acoustics
  • Biomedical Engineering
  • Signal Processing

Background:

  • Ultrasound pulse characteristics depend on transducer sound fields and reflector properties.
  • Accurate transducer parameters are crucial for predicting reflected pulse distortion.

Purpose of the Study:

  • To develop a method for assessing ultrasound transducer parameters.
  • To improve the calculation of reflected ultrasound pulse distortion.

Main Methods:

  • Utilized a Kalman filter algorithm.
  • Measured spatial sound field pressure amplitude distribution at various planes and frequencies.
  • Estimated transducer parameters based on these measurements.

Main Results:

  • The Kalman filter method reliably assesses transducer parameters.

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  • Calculated pressure amplitudes closely matched measured values using estimated parameters.

    • Conclusions:

    • The proposed method provides accurate estimation of transducer parameters.
    • This enhances the predictive modeling of ultrasound pulse distortion.