Abstract

A theory of interferometric processing of hydroacoustic data using an extended antenna is presented. An explicit relationship between the 2D spectral density of double Fourier transform of the interference pattern formed by a moving source and the aperture and angular dependence of received field is derived. The gain, antenna directional characteristic, and processing noise immunity are estimated. The results of numerical simulation are presented and discussed. Some ways to adapt the results obtained to the problems of solid-state acoustics using the space–time analogy are proposed and outlined.

中文翻译：

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使用扩展天线的声学数据处理中的干涉测量。时空类比

摘要

提出了一种使用扩展天线对水声数据进行干涉测量的理论。推导了由移动源形成的干涉图样的二次傅立叶变换的2D光谱密度与孔径和接收场的角度依赖性之间的明确关系。估计增益，天线方向特性和处理噪声抗扰度。给出并讨论了数值模拟的结果。提出并概述了一些使用时空类比来使所获得的结果适应固态声学问题的方法。