中国舰船研究2017，Vol.12Issue(1)：107-115,133,10.DOI:10.3969/j.issn.1673-3185.2017.01.016
相位共轭阵列及其形成的相位共轭声场
Phase-conjugate arrays and phase-conjugated fields produced by the arrays
摘要
Abstract
Phase Conjugate(PC)arrays can make sound waves travel backwards to converge,which can then be used to build the image of a noise source. This paper reviews and analytically studies three types of PC array(monopole PC array(PC/M),dipole PC array(PC/D)and perfect PC array(PC/P))and the phase-conjugated fields produced by the arrays. The relationship between the sound field produced by the source and the phase-conjugated fields produced by the arrays are discussed. The various PC schemes are compared and analyzed from the evanescent wave component and the propagating wave component. The metrics of the focusing properties of PC arrays and the effects of the array element spacing on the focusing properties are discussed. The spatial resolutions of various PC schemes with different distances between array and source are studied numerically with linear arrays. The element deviation is also discussed. A numerical simulation shows that PC/D with half-wavelength element spacing is effective at near field focusing,and PC/M with half-wavelength element spacing is effective at a greater distance.关键词
相位共轭阵列/相位共轭声场/倏逝波/聚焦特性Key words
phase-conjugate arrays/phase-conjugated fields/evanescent wave/focusing properties分类
交通工程引用本文复制引用
黎胜,李婷,刘松..相位共轭阵列及其形成的相位共轭声场[J].中国舰船研究,2017,12(1):107-115,133,10.基金项目
辽宁省教育厅重点实验室基础研究项目 （）
