Control limit analysis for the sidelobe reduction of ultrasonic transducer arrays

The effects of random response errors in amplitude and phase, element failures, and crosstalks on array gain and sidelobe level of ultrasonic transducer arrays are investigated by multivariate statistical analysis. The derived estimate equations are confirmed by simulation and measured data of vario...

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Published inElectronics & communications in Japan. Part 3, Fundamental electronic science Vol. 75; no. 12; pp. 48 - 58
Main Authors Kamata, Hiroshi, Chubachi, Noriyoshi
Format Journal Article
LanguageEnglish
Published New York Wiley Subscription Services, Inc., A Wiley Company 1992
Subjects
multivariate statistical analysis
sidelobe reduction
Sonar arrays
ultrasonic transducers
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Summary:The effects of random response errors in amplitude and phase, element failures, and crosstalks on array gain and sidelobe level of ultrasonic transducer arrays are investigated by multivariate statistical analysis. The derived estimate equations are confirmed by simulation and measured data of various sonar arrays. The results show that the reasonable control limit of response errors for an infallible sidelobe reduction is not determined by the mean value of statistical sidelobes described in other papers but by the 95‐percent control line proposed in this paper.
Bibliography:ark:/67375/WNG-JWWKR9WH-P
ArticleID:ECJC4430751205
istex:AAAB7DACA9BE0CC67CD6F78B3C7A6397448480F9
received a B.S., an M.S., and a Ph.D. in Electrical Engineering from Tohoku University, Sendai, Japan, in 1956, 1962, and 1965, respectively. In 1965 he joined the Research Institute of Electrical Engineering, Tohoku University, where he was an Associate Professor from 1966 to 1978. Since 1979 he has been a Professor in the Department of Electrical Engineering, Tohoku University. He has worked on ultrasonic transducers and delay lines, surface‐acoustic devices, acoustoelectronics, piezoelectric materials, acoustic microscopy, and related problems. Dr. Chubachi is a member of the Electrical Society of Japan; I.E.I.C.E., Japan; the Japan Society of Applied Physics; the Acoustical Society of Japan; the Japan Society of Ultrasonics in Medicine; and the Japan Society of Nondestructive Inspection. He served as Chairman of the Tokyo chapter of IEEE UFFC Society from 1987 to 1988. He received the Inaba Award in 1964 and the UFFC Outstanding Paper Award in 1989.
Noriyoshi Chubachi
received a B.S. and an M.S. in Electrical Engineering from Tohoku University, Sendai, Japan, in 1970 and 1972, respectively, and obtained a Ph.D. from Tohoku University in 1991. Since 1972 he has been at Oki Electric Industry Co., Ltd., Japan, where he is presently General Manager of the Marine Acoustic Department of Electronic Systems Laboratory. His main research interest is the application of underwater acoustic transducers, particularly in the sonar system. Dr. Kamata is a member of I.E.I.C.E., Japan; the Acoustical Society of Japan; and the Marine Acoustics Society of Japan.
Hiroshi Kamata
ISSN:1042-0967
1520-6440
DOI:10.1002/ecjc.4430751205