Single scattering: correlation function of a signal at the output of matched filter

3区物理与天体物理 Q1 Engineering

Waves in Random and Complex Media Pub Date : 2023-11-02 DOI:10.1080/17455030.2022.2099595

A. G. Vinogradov

引用次数: 0

Abstract

AbstractWe evaluate the correlation function of a radar signal scattered by inhomogeneities of turbulent medium and received by a radar station at the output of the matched filter. For the turbulent medium, we employ the model of wandering inhomogeneities, which is a generalization of the ‘frozen’ turbulence. The concepts of strong and weak wanderings are introduced. The case of bistatic radar station is considered. For a monostatic radar station, simple asymptotic formulas are obtained. It is shown that, in the short-wavelength limit, wanderings are almost always strong, and in the long-wavelength limit, the weak wandering limit takes place mainly in the long-wavelength approximation.Keywords: Scattering of wavesturbulencecorrelation functionradarmatched filteruncertainty function Disclosure statementNo potential conflict of interest was reported by the author.

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单散射:信号在匹配滤波器输出端的相关函数

摘要本文计算了湍流介质非均匀性散射后雷达站接收到的雷达信号在匹配滤波器输出端的相关函数。对于紊流介质，我们采用了漫游非均匀性模型，这是“冻结”紊流的推广。引入了强和弱漫游的概念。考虑了双基地雷达站的情况。对于单基地雷达站，得到了简单的渐近公式。结果表明，在短波长近似下，弱徘徊极限主要发生在长波长近似下，而在短波长近似下，弱徘徊极限主要发生在长波长近似下。关键词:波散射湍流相关函数雷达匹配滤波器不确定性函数披露声明作者未报告潜在利益冲突。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Waves in Random and Complex Media 物理-物理：综合

自引率

0.00%

发文量

677

审稿时长

3.0 months

期刊介绍： Waves in Random and Complex Media (formerly Waves in Random Media ) is a broad, interdisciplinary journal that reports theoretical, applied and experimental research related to any wave phenomena. The field of wave phenomena is all-pervading, fast-moving and exciting; more and more, researchers are looking for a journal which addresses the understanding of wave-matter interactions in increasingly complex natural and engineered media. With its foundations in the scattering and propagation community, Waves in Random and Complex Media is becoming a key forum for research in both established fields such as imaging through turbulence, as well as emerging fields such as metamaterials. The Journal is of interest to scientists and engineers working in the field of wave propagation, scattering and imaging in random or complex media. Papers on theoretical developments, experimental results and analytical/numerical studies are considered for publication, as are deterministic problems when also linked to random or complex media. Papers are expected to report original work, and must be comprehensible and of general interest to the broad community working with wave phenomena.