Optimum correlator arrangement for two-directional phase-aberration correction

Yuichi Miwa, Shin ichiro Umemura, Ryuichi Shinomura, Matthew O'Donnell

Research output: Contribution to journalConference articlepeer-review

Abstract

We have determined by computer simulation the optimum correlator arrangement when correcting two-directional phase-aberration with a two-dimensional (2D) array. In the simulation, a 2D phase screen was estimated from the correlation of neighboring signals in the 2D transducer. The difference between a given phase screen and the corresponding estimated phase screen was evaluated to find the optimum correlator arrangement. The optimum arrangement is to locate an equal number of correlators in both the scan and elevation directions with the distance between the neighboring correlators being 0.2 to 0.4 times the phase-screen correlation length.

Original languageEnglish
Pages (from-to)1607-1610
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
Volume2
Publication statusPublished - 1998 Dec 1
EventProceedings of the 1998 International Ultrasonics Symposium - Sendai, Miyagi, Jpn
Duration: 1998 Oct 51998 Oct 8

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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