By Topic

Aberration correction on a two-dimensional anisotropic phased array [medical US imaging]

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
O'Donnell, M. ; Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA ; Pai-Chi Li

Aberration correction methods for 1-D arrays have been extended for 2-D arrays. Particular emphasis has been placed on aberration correction for 2-D anisotropic arrays, where local phase errors are estimated using correlation processing of signals from unequally sized elements. Unwrapping of these local estimates over the 2-D array also has been investigated. A very practical method for 2-D aberration correction appropriate for pipelined beam forming has been developed. Simulation results demonstrate that the method yields accurate 2-D phase corrections over an anisotropic array. Moreover, these results show that the accuracy of the phase estimates is relatively immune both to the specific two-dimensional unwrap path and the presence of inoperable elements

Published in:

Ultrasonics Symposium, 1991. Proceedings., IEEE 1991

Date of Conference:

8-11 Dec 1991