ACOUSTIC PARAMETERS ESTIMATION USING BACK WAVE PROPAGATION TECHNIQUE

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MOKHTARI DIZAJI M.; MOKHTARI DIZAJI R.

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH) Year:2004 | Volume:15 | Issue:4 Page(s): 65-72

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Information Journal Paper

Title

ACOUSTIC PARAMETERS ESTIMATION USING BACK WAVE PROPAGATION TECHNIQUE

Author(s)

MOKHTARI DIZAJI M. | MOKHTARI DIZAJI R. | Issue Writer Certificate

Keywords

ACOUSTIC PARAMETERS

BACK WAVE PROPAGATION

ACOUSTIC FIELD

Abstract

The concept of BACK WAVE PROPAGATION is developed as an inversion method to estimate ACOUSTIC PARAMETERS of the tissue and material from measurements of the ACOUSTIC FIELD for a known source-receiver. A phase-regulated technique is introduced to measure the sensitivity of the back-wave propagation inversion method for estimating weakly sensitive acoustic model parameters. The paper demonstrates theoretically that the sensitivity can be measured by a sensitivity factor using the phase-regulation procedure. The paper also demonstrates that the spatial resolution of back propagated signal energy that is focused at the known source location is increased when sensitivity factor increases. This result leads to the definition of a criterion based on the spatial distribution of the signal energy around the source location. The criterion is formulated based on the spatial variance of the back propagated pressure field in a windows around the known source location. Use of the BACK WAVE PROPAGATION inversion method is demonstrated for estimating the acoustic model parameters, including type of materials, tissues, water depth, compressional speed of the sediment layer, and mineral density as poro-elastic media.

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APA: Copy

MOKHTARI DIZAJI, M., & MOKHTARI DIZAJI, R.. (2004). ACOUSTIC PARAMETERS ESTIMATION USING BACK WAVE PROPAGATION TECHNIQUE. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH), 15(4), 65-72. SID. https://sid.ir/paper/532340/en

Vancouver: Copy

MOKHTARI DIZAJI M., MOKHTARI DIZAJI R.. ACOUSTIC PARAMETERS ESTIMATION USING BACK WAVE PROPAGATION TECHNIQUE. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH)[Internet]. 2004;15(4):65-72. Available from: https://sid.ir/paper/532340/en

IEEE: Copy

M. MOKHTARI DIZAJI, and R. MOKHTARI DIZAJI, “ACOUSTIC PARAMETERS ESTIMATION USING BACK WAVE PROPAGATION TECHNIQUE,” INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH), vol. 15, no. 4, pp. 65–72, 2004, [Online]. Available: https://sid.ir/paper/532340/en

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