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Left/Right Bearing Discrimination with Adaptive Cardioid Beamforming  

손윤준 (한국해양대학교 전파공학과)
천승용 (국방과학연구소)
김기만 (한국해양대학교 전파공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.22, no.6, 2003 , pp. 489-495 More about this Journal
Abstract
Single towed line array receiver contains an ambiguity on conjugate bearings because of lacking aperture in transverse direction. To solve the left/right bearing ambiguity of line array receiver this paper proposed using single line array with fixed cardioid beam. Fixed cardioid beam has problem about back beam gain exists for steering beam inherent. Back beam is makes form on direction that is different from actually source so that reduced the performance of left/right bearing discrimination. In this paper, line way with adaptive cardioid beam for resolve problem of back beam gain is proposed. So the proposed method has more improved left/right bearing discrimination than fixed cardioid beam, Simulation results show the performance of the proposed method.
Keywords
Line array; Cardioid beam; Left/right discrimination;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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