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本文采用广义相干函数和广义散射函数的概念探讨线谱声源随机运动和随机海洋声信道引起的非相干散射,指出接收点的散射函数是线谱辐射过程时空过滤函数和随机海洋声信道散射函数的卷积。文中分别给出了声源随机运动和海洋信道随机时延引起的空间频率谱扩展。
In this paper, the concept of generalized coherence function and generalized scattering function is used to explore the incoherent scatter caused by the random motion of the line spectrum source and the random ocean acoustic channel. It is pointed out that the scattering function of the receiving point is the space-time filtering function and the scattering function of the random ocean acoustic channel Convolution. In this paper, the spatial frequency spectrum expansion caused by the random motion of sound source and the random delay of ocean channel are given respectively.