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| circular error (一种精度表示方法，表示任何二维的点落在给定区域的概率的大小。圆概率误差“CEP50%”和圆误差“CE90%”最为常用。水平地面上，以英尺或米计量，确定一个圆的半径，目标应该落在圆内。CE 需标明相关的概率。例如“CE of l00m”表示落在半径为100m 的圆内的概率是90%。圆误差常用于衡量武器投放的结果) | |||
| dispersion error | |||
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