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.
应用简正波理论并结合波数积分法，建立了浅海低频声传播特性的仿真数学模型。
Using the Normal Model Theory and Wavenumber Integration Method, a low frequency acoustic wave propagation model in shallow sea of multi-layered media is constituted.
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.
本文对比了波动理论、简正波声场和射线模型的声场预报结果，给出了后二种方法的近似程度。
Results of acoustic field prognosis on wave theory, normal model and ray model are compared, and the approximate degree of the later two models is given.
应用简正波传播时间与声速起伏的对应微扰关系式，给出了上述对应关系的理论解释。
The relation equations between Normal Mode propagation travel-time and sound-speed fluctuation are used to explain the qualitatively relationship between two spectra.
应用简正波传播时间与声速起伏的对应微扰关系式，给出了上述对应关系的理论解释。
The relation equations between Normal Mode propagation travel-time and sound-speed fluctuation are used to explain the qualitatively relationship between two spectra.
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