Scholars@Duke publication: SPECKLE PATTERN CHANGES WITH VARYING ACOUSTIC FREQUENCY: EXPERIMENTAL MEASUREMENT AND IMPLICATIONS FOR FREQUENCY COMPOUNDING.

SPECKLE PATTERN CHANGES WITH VARYING ACOUSTIC FREQUENCY: EXPERIMENTAL MEASUREMENT AND IMPLICATIONS FOR FREQUENCY COMPOUNDING.

Publication , Journal Article

Trahey, GE; Allison, JW; Smith, SW; von Ramm, OT

Published in: Ultrasonics Symposium Proceedings

January 1, 1986

Published version (DOI)

The authors have measured the rates of ultrasonic B-mode speckle pattern changes as a function of the change in center frequency of the transmitted acoustical pulse under a variety of experimental conditions. Experimental results agree with a previous theoretical description of this phenomenon. The results are used to determine the optimal method of frequency compounding for speckle reduction in a fixed bandwidth imaging. The analysis indicates that by dividing the available system bandwidth in half for the purpose of frequency compounding, the equivalent of 1. 46 independent images may be averaged for speckle reduction. Further analysis indicates that frequency compounding does not improve diffuse target detectability in a fixed bandwidth system.

Duke Scholars

Author Gregg E. Trahey Biomedical Engineering

Author Stephen William Smith Biomedical Engineering

Author Olaf T. Von Ramm Biomedical Engineering

Published In

Ultrasonics Symposium Proceedings

DOI

10.1109/ultsym.1986.198847

ISSN

0090-5607

Publication Date

January 1, 1986

Start / End Page

815 / 818

Citation

APA

Chicago

ICMJE

MLA

NLM

Trahey, G. E., Allison, J. W., Smith, S. W., & von Ramm, O. T. (1986). SPECKLE PATTERN CHANGES WITH VARYING ACOUSTIC FREQUENCY: EXPERIMENTAL MEASUREMENT AND IMPLICATIONS FOR FREQUENCY COMPOUNDING. Ultrasonics Symposium Proceedings, 815–818. https://doi.org/10.1109/ultsym.1986.198847

Trahey, G. E., J. W. Allison, S. W. Smith, and O. T. von Ramm. “SPECKLE PATTERN CHANGES WITH VARYING ACOUSTIC FREQUENCY: EXPERIMENTAL MEASUREMENT AND IMPLICATIONS FOR FREQUENCY COMPOUNDING.” Ultrasonics Symposium Proceedings, January 1, 1986, 815–18. https://doi.org/10.1109/ultsym.1986.198847.

Trahey GE, Allison JW, Smith SW, von Ramm OT. SPECKLE PATTERN CHANGES WITH VARYING ACOUSTIC FREQUENCY: EXPERIMENTAL MEASUREMENT AND IMPLICATIONS FOR FREQUENCY COMPOUNDING. Ultrasonics Symposium Proceedings. 1986 Jan 1;815–8.

Trahey, G. E., et al. “SPECKLE PATTERN CHANGES WITH VARYING ACOUSTIC FREQUENCY: EXPERIMENTAL MEASUREMENT AND IMPLICATIONS FOR FREQUENCY COMPOUNDING.” Ultrasonics Symposium Proceedings, Jan. 1986, pp. 815–18. Scopus, doi:10.1109/ultsym.1986.198847.

Trahey GE, Allison JW, Smith SW, von Ramm OT. SPECKLE PATTERN CHANGES WITH VARYING ACOUSTIC FREQUENCY: EXPERIMENTAL MEASUREMENT AND IMPLICATIONS FOR FREQUENCY COMPOUNDING. Ultrasonics Symposium Proceedings. 1986 Jan 1;815–818.

Published In

Ultrasonics Symposium Proceedings

DOI

10.1109/ultsym.1986.198847

ISSN

0090-5607

Publication Date

January 1, 1986

Start / End Page

815 / 818