本发明提供了一种通用性好，运算效率高，并且易于编程实现的本征声线求取方法。
The invention relates to an intrinsic sound line acquisition method with good general feature, high calculation efficiency and easy programmable ability.
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。
On basis of model of span, the method divides eigenrays into combination of three spans, and builds equations to search eigenrays.
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