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本文在非均匀流场中规则波折－绕射缓坡方程的基础上，引入谱的概念，建立了用方向谱表示的非均匀流场中随机波折－绕射缓坡方程，并选用文圣常等提出的解析方向谱作为靶谱，就一模型海区进行具体的数值计算，结果表明，随机波折－绕射模型要明显优于规则波的折－绕射模型。
In this paper, the concept of spectrum is introduced based on the rule-set diffraction-gentle slope equation in the non-uniform flow field, and the stochastic wave-diffraction gentle slope equation in the non-uniform flow field is established by using the directional spectrum. The results show that the stochastic birefringence-diffraction model is better than the regular-wave diffraction-diffraction model.