Embedding uncertainty into ocean acoustic propagation models (L)
Embedding uncertainty into ocean acoustic propagation models (L)
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DOI：
10.1121/1.1855811
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发表时间：
2005-03
影响因子：
2.4
通讯作者：
S. Finette
中科院分区：
文献类型：
--
作者：
S. Finette
提出了一种概率形式主义的直接列入环境的不确定性到声学模型，描述在海洋波导中的传播。不完整的环境知识的特点是频谱表示的不确定性，使用正交随机多项式的随机过程的扩展。简要总结的方法，并提出了一组耦合微分方程描述的声场及其相关的不确定性的传播的情况下，不确定的环境是由于缺乏完整的信息有关的波导的声速分布。
A probabilistic formalism is proposed for the direct inclusion of environmental uncertainty into an acoustic model that describes propagation in an ocean waveguide. Incomplete environmental knowledge is characterized by a spectral representation of uncertainty using expansions of random processes in terms of orthogonal random polynomials. A brief summary of the method is presented and a set of coupled differential equations describing the propagation of both the acoustic field and its associated uncertainty is derived for the case where the uncertain environment is attributed to a lack of complete information concerning the waveguide’s sound speed distribution.