基于声简正波理论，给出了内波导致声场起伏特性的一般理论解释。
Based on Normal Mode theory, the explanation of sound field fluctuation characteristic caused by internal waves is given.
利用简正波干涉理论，对实验结果中声场水平纵向相关的振荡结构与强烈起伏现象进行了分析与解释。
The oscillation pattern and strong fluctuations of the horizontal-longitudinal correlations observed in the experiments are analyzed and interpreted by using the normal modes interference theory.
对固定的声源深度，发射频率大的声场对应的声强起伏大，且相邻距离处起伏的强度很剧烈；
For a fixed sound source depth, the acoustical fields caused by high send frequency has strong sound intensity fluctuation, and their variation is sharp enough in an adjacent range.
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