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本文用Barnes带通滤波法、二十五点格式滤波法和高阶高通隐式滤波法，对含有地面辐合线和飑线的地面加密观测资料和客观分析资料进行了中尺度滤波试验。结果表明，三种滤波器的作用结果都能有效突出地面辐合线和飑线的中尺度特征，其中Barnes法的性能和结果较理想，二十五点法和高阶高通法各有特点。
In this paper, Mesoscale filtering experiments were carried out on the ground-based observation data and objective analysis data of ground convergence lines and 飑 lines using Barnes band-pass filtering, 25-point format filtering and high-order high-pass implicit filtering. The results show that the results of the three kinds of filters can effectively highlight the mesoscale features of the ground convergence line and the 飑 line. Among them, the performance and results of the Barnes method are ideal, and the 25-point method and the high-order high-pass method have their own characteristics.