Fundamental limit on the accuracy of speckle signal alignment
Publication
, Journal Article
Walker, WF; Trahey, GE
Published in: Proceedings of the IEEE Ultrasonics Symposium
December 1, 1994
Signal alignment is performed in phase aberration correction and measurement, tissue elasticity estimation, and tissue and blood velocity estimation. The performance of all these techniques is limited by errors in the alignment of signals received from speckle generating targets. We have derived an analytical expression based on the Cramer-Rao Lower Bound which predicts the magnitude of jitter errors resulting from the alignment of radio frequency speckle data. The expression includes the effects of finite length samples of data, signal decorrelation, electronic noise, signal bandwidth, and center frequency. This expression indicates that signal decorrelation is a significant source of jitter for many ultrasound applications.
Duke Scholars
Published In
Proceedings of the IEEE Ultrasonics Symposium
ISSN
1051-0117
Publication Date
December 1, 1994
Volume
3
Start / End Page
1787 / 1791
Citation
APA
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ICMJE
MLA
NLM
Walker, W. F., & Trahey, G. E. (1994). Fundamental limit on the accuracy of speckle signal alignment. Proceedings of the IEEE Ultrasonics Symposium, 3, 1787–1791.
Walker, W. F., and G. E. Trahey. “Fundamental limit on the accuracy of speckle signal alignment.” Proceedings of the IEEE Ultrasonics Symposium 3 (December 1, 1994): 1787–91.
Walker WF, Trahey GE. Fundamental limit on the accuracy of speckle signal alignment. Proceedings of the IEEE Ultrasonics Symposium. 1994 Dec 1;3:1787–91.
Walker, W. F., and G. E. Trahey. “Fundamental limit on the accuracy of speckle signal alignment.” Proceedings of the IEEE Ultrasonics Symposium, vol. 3, Dec. 1994, pp. 1787–91.
Walker WF, Trahey GE. Fundamental limit on the accuracy of speckle signal alignment. Proceedings of the IEEE Ultrasonics Symposium. 1994 Dec 1;3:1787–1791.
Published In
Proceedings of the IEEE Ultrasonics Symposium
ISSN
1051-0117
Publication Date
December 1, 1994
Volume
3
Start / End Page
1787 / 1791