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- n．特征射线：在声学和光学领域，特征射线是一种描述波传播路径的概念，通常用于分析复杂环境中的波传播特性。
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电子、通信与自动控制技术 本征声线 The coarse searching algorithm and subtle Newton's iterative searching algorithm of eigenrays represented by the combination of several specified ray spans are combined to search all the important eigenrays quickly and correctly, thus the sea sound field is simulated. 引入跨度的概念,采用初搜索和牛顿下山迭代法细搜索的本征声线搜索算法,快速准确地搜索出全部重要本征声线,从而模拟出海洋声场。
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On basis of model of span, the method divides eigenrays into combination of three spans, and builds equations to search eigenrays. 该方法在跨度模型的基础上，将本征声线表示为三段声线跨度的组合，建立跨度方程组以确定本征声线。
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