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首先阐述了各种图象平滑处理方法的特点，在仔细分析天气雷达数字化回波图特征的基础上，采取快速中值滤波的方法平滑天气雷达回波图，并得到了满意的结果
First of all, the characteristics of various image smoothing methods are expounded. On the basis of careful analysis of the characteristics of the weather radar digital echogram, the fast median filter method is used to smooth the weather radar echogram, and satisfactory results are obtained