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不平整海底环境下的浅海本征声线求解方法

DOI: doi:10.3969/j.issn.1006-7043.2011.12.004

Keywords: 本征声线, 三维浅海, 传播时间, 水平偏转

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Abstract:

在三维浅海环境中,若不考虑不平整海底反射所带来的声线水平偏转,将会给声源方位估计等工作带来较大的误差,针对这一问题,通过建立不平整海底浅海环境下射线声学模型,提出了采用“补偿扫描法”搜索本征声线,计算了本征声线的传播时间.与理论传播时间对比的结果表明所提出的本征声线求解方法是可行的.在计算时,通过采用射线方程直接解海底反射点的方法,避免了一步一步跟踪声线轨迹,使得计算速度提高了将近2倍.

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