TY - JOUR
T1 - Optimum correlator arrangement for two-directional phase-aberration correction
AU - Miwa, Yuichi
AU - Umemura, Shin ichiro
AU - Shinomura, Ryuichi
AU - O'Donnell, Matthew
PY - 1998/12/1
Y1 - 1998/12/1
N2 - 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.
AB - 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.
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M3 - Conference article
AN - SCOPUS:0032277348
VL - 2
SP - 1607
EP - 1610
JO - Proceedings - IEEE Ultrasonics Symposium
JF - Proceedings - IEEE Ultrasonics Symposium
SN - 1051-0117
T2 - Proceedings of the 1998 International Ultrasonics Symposium
Y2 - 5 October 1998 through 8 October 1998
ER -