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由卫星散射计测量得到的归一化雷达截面积σ~0值以及用这些σ~0值关联海面风速风向的经验模型函数可以反演海面的风矢量。但是对应一分辨面元上测量的σ~０值并不是唯一的风矢量解与之对应，选择一个风矢量解来表示真风矢量的处理过程就叫模糊排除或称消去伪解。本文引入一种圆中数滤波技术，在由模拟的ＥＲＳ－１散射计数据反演风场中，不附加任何其他信息的情况下，圆中数滤波器改进风向模糊排除方法，很好地重现模拟的海面真风矢量。
The normalized radar cross-section σ ~ 0 measured by the satellite scatterometer and the empirical model functions that correlate the wind direction and direction with these σ ~ 0 values can invert the wind vector on the sea surface. However, the value of σ ~ 0 measured on a distinguishing facet is not the only solution of the wind vector corresponding to it. The process of selecting a wind vector solution to represent the true wind vector is called fuzzy elimination or elimination of the pseudo-solution. In this paper, we introduce a circular median filtering technique. In the wind field retrieved from the simulated ERS-1 scatterometer data, the circular median filter improves the wind direction fuzzy elimination method without any additional information, The simulated sea surface wind vector.