Scholarlink

Abstract <p>An important issue in statistical modeling related to the number of independent random realizations required to obtain reliable results in studying the propagation and scattering of a low-frequency acoustic signal in a shallow-water waveguide with a horizontal absorbing liquid bottom and a random rough surface simulating surface waves is considered. Calculations of signal attenuation and fluctuations in intensity in an Arctic-type waveguide with developed surface waves and a reflective bottom boundary are presented. It is shown that since the influence of a random surface on the statistical characteristics of signal intensity is quite small for paths of typical length in shallow water, the ensemble of realizations for reliable calculations of these characteristics cannot be small but must include hundreds of surface wave realizations.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

On the Choice of an Ensemble of Random Realizations of Surface Waves for Reliable Modeling of Statistical Characteristics of a Sound Field in a Shallow-Sea Waveguide

  • 期刊论文

  • 发表日期：

    2026年3月23日

查看全文
  • O. E. Gulin,
  • G. I. Dolgikh,
  • I. O. Yaroshchuk

摘要

Abstract

An important issue in statistical modeling related to the number of independent random realizations required to obtain reliable results in studying the propagation and scattering of a low-frequency acoustic signal in a shallow-water waveguide with a horizontal absorbing liquid bottom and a random rough surface simulating surface waves is considered. Calculations of signal attenuation and fluctuations in intensity in an Arctic-type waveguide with developed surface waves and a reflective bottom boundary are presented. It is shown that since the influence of a random surface on the statistical characteristics of signal intensity is quite small for paths of typical length in shallow water, the ensemble of realizations for reliable calculations of these characteristics cannot be small but must include hundreds of surface wave realizations.