本文基于模糊数学理论，建立了水声图像的模糊特征矩阵，并采用正弦模糊分布函数对真实的水声图像进行了增强处理。

This paper defined the matrix of fuzzy characteristics of sonar images based on the theory of fuzzing mathematics, and enhanced the image by using the sine fuzzy function.

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本文从理论上研究了部分相干情形下，各种相干函数及相干度，对直边象场分布的影响。

This paper deals theoretically with the influences of various kinds of mutual coherence function and the degree of coherence on the distribution of straight-edge generated image field.

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依赖传统的损失分布理论，财产损失分布模型拟合的优劣往往取决于经验分布函数的选择和参数的确定。

With traditional theory of loss distribution, the goodness of fit of the property loss distribution model depends on the choice of the experience distribution function and parameters.

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