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本文简要地叙述了采用波动光学自相关法计算光学系统的传递函数的方法,并提出一些提高传递函数计算精度和速度的方法。文中给出一种能较快地确定轴外渐晕光瞳边界的方法和精确处理离焦问题的方法,对波象差的计算进行了改进。并将应用上述方法编制的传递函数计算程序计算的结果,与文献上发表的结果进行了比较。
This paper briefly describes the method of using the fluctuating optical autocorrelation method to calculate the transfer function of the optical system and puts forward some methods to improve the calculation accuracy and speed of the transfer function. In this paper, a method of determining the out-of-axis vignetting pupil boundary and a method of accurately dealing with the out-of-focus problem are given, and the calculation of wave aberration is improved. The results calculated by the transfer function calculation program prepared by the above method are compared with those published in the literature.