Convergence Characteristics of Phase-Conjugate Waves in Deep Sound Channels
Convergence Characteristics of Phase-Conjugate Waves in Deep Sound Channels
复制标题
深声通道中相位共轭波的收敛特性
DOI：
10.1143/jjap.41.4739
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
J. Naoi
中科院分区：
文献类型：
--
作者：
T. Kikuchi;Kohji Futa;T. Tsuchiya;J. Naoi
利用基于折射率平方分段线性逼近的正交模态理论，模拟了深声道中相位共轭波的声压场和收敛特性。声源，频率为200hz，放置在通道轴上。换能器阵列由160个元件组成。它的元素之间的距离等于声波的波长。阵列的中心被设置成与通道轴一致。将声源与换能器阵列之间的距离从10 km改变为1000 km，计算声源与换能器阵列之间的声压分布。结果表明，在超过100 km的范围内，深声道中相位共轭波仍保持良好的收敛特性。
The sound pressure fields and the convergence characteristics of phase-conjugate waves in deep sound channels are simulated using the normal mode theory based on piece-wise linear approximation to the index of refraction squared. The sound source, with the frequency of 200 Hz, is placed on the channel axis. The transducer array consists of 160 elements. The distance between its elements is equal to the wavelength of the sound wave. The center of the array is set up so as to be in agreement with the channel axis. The sound pressure distributions between the sound source and the transducer array are calculated by changing the range between them from 10 km to 1000 km. It has been shown that good convergence characteristics of the phase-conjugate waves in deep sound channels are maintained also in the range exceeding 100 km.