Journal article
Reconstruction of the acoustical impedance profile of a multilayer medium
Ultrasonic imaging, v 14(1), pp 40-68
1992
PMID: 1549896
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The recovery of the acoustical reflectivity function and impedance profile of a layered medium from bandlimited and noisy pulse-echo ultrasonic data is considered. The effects of the transducer and the noise are reduced using Wiener filtering. With further signal processing and
a priori knowledge of the attenuation and the velocity profiles, the compensated coefficients of the reflectivity function and the impedance profile are recovered. The reconstruction techniques are presented analytically, and are also evaluated in an experimental setup composed of a conventional pulse echo system, a data acquisition and a data processing system. Under experimental conditions, the RMS errors in the estimation of the compensated acoustical discrete impedance profile were within 3% of the calculated values.
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Details
- Title
- Reconstruction of the acoustical impedance profile of a multilayer medium
- Creators
- I Lifshitz - Cardiometrics Inc., Montain View CA 94043, United StatesP. C Pedersen - Cardiometrics Inc., Montain View CA 94043, United StatesP. A Lewin - Cardiometrics Inc., Montain View CA 94043, United States
- Publication Details
- Ultrasonic imaging, v 14(1), pp 40-68
- Publisher
- Dynamedia
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:A1992HD88600004
- Scopus ID
- 2-s2.0-0026543727
- Other Identifier
- 991019186674104721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Acoustics
- Engineering, Biomedical
- Radiology, Nuclear Medicine & Medical Imaging