飞机共形窗口像差的二级静态校正

由于飞机共形窗口形状非对称且常常相对于其后成像系统倾斜，使得结构最为简单的旋转对称固定校正器无法应用于飞机共形窗口的像差校正。为了最大程度简化飞机共形校正系统结构，提出了飞机共形窗口像差的二级静态校正，使得固定校正器能够应用于飞机共形窗口的像差校正。第一级静态校正，即通过某种静态校正手段首先校正共形窗口在0°沿轴瞬时扫描视场引入的非对称像差，为固定校正器的使用提供条件；从理论上证明了通过对飞机共形窗口内表面进行消像差设计，可以作为一种校正手段实现第一级静态校正。第二级静态校正，即使用固定校正器校正共形窗口引入的随扫描视场变化而变化的动态像差。阐明了飞机共形窗口像差的二级静态校正原理；基于该校正原理，给出了一个设计实例。

Abstract

Aircraft conformal windows have asymmetrical shape and usually tilt relative to the imaging system behind. Thus, rotationally symmetrical fixed corrector having the simplest structure can not be applied to aberration correction for aircraft conformal windows. To simplify the structure of aircraft conformal correction system to the greatest extent, the two-stage static correction of aircraft conformal window aberration is presented. This solution makes fixed corrector applied to the aberration correction for aircraft conformal windows. The first stage static correction is to correct the asymmetrical aberration introduced by the conformal window at 0° field of regard along the axis based on some static correction method. This stage provides condition for using fixed corrector. It is proved theoretically that the first stage static correction can be achieved by designing the inner surface of the conformal window. The second static correction is to correct the dynamic aberration varying with the look angle introduced by the conformal window using fixed corrector. The two-stage static correction principle of aircraft conformal window aberration is clarified. Based on this principle, a design example is presented.

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赵春竹, 崔庆丰, 朴明旭, 赵丽东. 飞机共形窗口像差的二级静态校正[J]. 中国激光, 2016, 43(2): 0216001. Zhao Chunzhu, Cui Qingfeng, Piao Mingxu, Zhao Lidong. Two-Stage Static Correction of Aircraft Conformal Window Aberration[J]. Chinese Journal of Lasers, 2016, 43(2): 0216001.

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