A wave spectrum analyzing program is also compiled with correlative function method.

并用相关函数法编制了一套海浪谱分析程序。

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This model is solved by applying the direct perturbation method. The time evolution of spectrum and the first order approximate wave function for the system are presented.

利用直接微扰法，给出了该系统的一级近似波函数及能谱随时间的演化规律。

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The character and structure of instability of transversal wave disturbance is studied in this paper by using calculating the spectrum and spectral function of the transversal wave disturbance.

采用计算横波型扰动波谱和谱函数的方法，研究了当基本气流具有垂直线性切变、层结参数为常值时横波型扰动的不稳定，给出了不稳定扰动的结构，讨论了不稳定的性质。

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