基于可变方差的分形算符生成相位屏算法修正

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  依据基于分形算符的生成相位屏算法,可以得到任意两点的结构函数模拟值的表达式,进而推断出结构函数的模拟值与点的方差值相关,且即使距离相同,位置不对称的两对点的表达式也一般不同。所以,在使用唯一方差时,利用这种算法生成相位屏会引入系统误差,比如统计相位屏对边上垂直方向相对点的结构函数值后,会发现这些值偏差比较大,并出现对称性。
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