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http://dx.doi.org/10.5573/ieie.2017.54.3.15

Design of SONAR Array for Detection of Bottoming Cylindrical Objects  

Kim, Sunho (School of Electronic Engineering, Soongsil University)
Jung, Jangwon (School of Electronic Engineering, Soongsil University)
On, Baeksan (School of Electronic Engineering, Soongsil University)
Im, Sungbin (School of Electronic Engineering, Soongsil University)
Seo, Iksoo (School of Electronic Engineering, Soongsil University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.54, no.3, 2017 , pp. 15-21 More about this Journal
Abstract
In the active SONAR system, various studies have been carried out to enhance the resolution of a received signal. In order to obtain higher resolution for detecting a bottoming cylindrical object, the design of a planar array for SONAR is investigated in this paper. It is necessary to employ planar structures for SONAR array to obtain narrower beam pattern which gives high resolution. In this study, the transmit frequency of each acoustic transducer, which consists of an array is 13 kHz. For efficient detection of a target of an asymmetric size, the concept of areal angle is applied, which considers resolution according to both azimuth and elevation angles in array design. In the design, the areal angle is first investigated to satisfy the resolution requirements, and then based on the value of areal angles, the azimuth angle and the elevation angle are calculated respectively to design an array.
Keywords
능동 소나 시스템;평면 어레이;탐지 해상도;빔 형성;어레이 디자인;
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Times Cited By KSCI : 2  (Citation Analysis)
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