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Strehl ratio as the Fourier transform of a probability density of error differences

机译:STREHL比率作为误差差异概率密度的傅里叶变换

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To give useful insight into the impact of mid-spatial frequency structure on optical performance, the Strehl ratio is shown to correspond to the Fourier transform of a simple statistical characterization of the aberration in the exit pupil. This statistical description is found simply by autocorrelating a histogram of the aberration values. In practice, the histogram itself can often be approximated by a convolution of underlying histograms associated with fabrication steps and, together with the final autocorrelation, it follows from the central limit theorem that the Strehl ratio as a function of the scale of the phase error is generally approximated well by a Gaussian. (C) 2016 Optical Society of America
机译:为了对中间空间频率结构对光学性能的影响进行有用的洞察,斯特勒比比对应于出口瞳孔中的像差的简单统计表征的傅里叶变换。 仅通过自相关的像差值的直方图来找到该统计描述。 在实践中,直方图本身通常可以通过与制造步骤相关联的底层直方图的卷积来近似,以及与最终自相关的底层直方图,它从中央极限定理中遵循斯特勒比作为相位误差的比例的函数 通常通过高斯近似近似。 (c)2016年光学学会

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