Abstract
传统整流罩为半球形或半球形的一部分，产生的空气阻力较大，不利于武器飞行速度的提高。基于空气动力学性能的考虑，采用共形整流罩的光学技术被提出。文章描述了二次曲面共形整流罩外表面、内表面的设计方法及面型表达式，通过在CODEV中建立共形整流罩的扫描成像模型，应用Zernike多项式分解法研究了不同长径比、边缘斜率、口径比和回转中心位置对离焦像差(<i>Z</i>4)、像散(<i>Z</i>5)、彗差(<i>Z</i>8)和球差(<i>Z</i>9)的影响规律。研究结果表明：二次曲面共形整流罩引入的离焦像差、像散、彗差和球差均随着长径比、边缘斜率和口径比的增加而增大，但对成像系统回转中心的位置不敏感。因此，在满足武器的空气动力学性能条件下应尽量减小长径比、边缘斜率和口径比，回转中心的位置主要根据结构需要进行设计。
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