聚焦高频声脉冲探测时折射波导空间局域非均匀性的检测

IF 0.8 4区地球科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Radiophysics and Quantum Electronics Pub Date : 2023-04-21 DOI:10.1007/s11141-023-10231-5

A. I. Khil’ko, I. P. Smirnov, E. A. Mareev, K. A. Sidorov, V. E. Konovalov, V. V. Kovalenko

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引用次数: 0

摘要

我们在声场的射线描述框架内研究了在折射率海洋波导中对小尺寸物体进行层析观测的可能性。为了提高反演观测问题的空间分辨率和灵敏度，采用了将辐射和接收脉冲自波导聚焦到假定被观测物体位置的方法。为了减少波导中场的干涉结构的影响，我们使用了单个射线层析投影的选择，然后是部分解的非相干积累。利用众所周知的高频声波传播和散射物理模型，建立了探测系统的仿真模型。

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Detection of Spatially Localized Inhomogeneities in Refractive Waveguides when Probing with Focused High-Frequency Acoustic Pulses

We study the possibilities of tomographic observation of small-sized bodies in refractive oceanic waveguides within the framework of the ray description of the acoustic field. To increase the spatial resolution and sensitivity in solving the inverse observation problem, the waveguide-adapted focusing of the radiated and received pulses to the area of the assumed location of the observed body is used. To reduce the effect of the interference structure of the fields in the waveguide, we use the selection of individual ray tomographic projections followed by incoherent accumulation of partial solutions. A simulation model of the detection system using well-known physical models of the propagation and scattering of high-frequency acoustic waves is constructed.

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来源期刊

Radiophysics and Quantum Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-PHYSICS, APPLIED

CiteScore

1.10

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Radiophysics and Quantum Electronics contains the most recent and best Russian research on topics such as: Radio astronomy; Plasma astrophysics; Ionospheric, atmospheric and oceanic physics; Radiowave propagation; Quantum radiophysics; Pphysics of oscillations and waves; Physics of plasmas; Statistical radiophysics; Electrodynamics; Vacuum and plasma electronics; Acoustics; Solid-state electronics. Radiophysics and Quantum Electronics is a translation of the Russian journal Izvestiya VUZ. Radiofizika, published by the Radiophysical Research Institute and N.I. Lobachevsky State University at Nizhnii Novgorod, Russia. The Russian volume-year is published in English beginning in April. All articles are peer-reviewed.