基于波前编码的共形整流罩剩余像差抑制方法研究  

Research on residual aberration suppression method of conformal dome by wavefront coding

作　　者：林琳 邹博琳 张佳良 朱崇辉 于佳倩 孙朝范 LIN Lin;ZOU Bolin;ZHANG Jialiang;ZHU Chonghui;YU Jiaqian;SUN Chaofan(Faculty of Science,Northeast Forestry University,Harbin150040,China)

机构地区：[1]东北林业大学理学院,黑龙江哈尔滨150040

出　　处：《光学技术》2025年第2期159-163,共5页Optical Technique

基　　金：国家自然科学基金(12304314)。

摘　　要：共形整流罩空气动力学性能良好,但其自身结构特性会引入随视角变化的动态像差,导致共形光学系统像质下降。针对该问题,提出了使用波前编码技术来抑制共形整流罩剩余像差的方法。利用传统的非球面固定校正器对共形整流罩的动态像差进行初步校正,然后在共形光学系统的出瞳面插入设计优良的相位掩膜板实现剩余像差的抑制。通过PSF、Strehl比以及图像仿真等验证了该方法的可行性。设计结果表明,该方法能够有效减少光学元件的数量,消像差效果良好。The conformal dome has good aerodynamic performance. However, the dynamic aberrations that change with the look angle will be introduced due to the structural characteristics of the conformal dome, resulting in the image quality degradation of the conformal optical system. To solve this problem, a method of suppressing the remaining aberrations of the conformal dome using wavefront coding technique is proposed. The dynamic aberrations of the conformal dome are initially corrected by designing a traditional aspherical fixed corrector, and then a well-designed phase mask is inserted into the exit pupil plane of the conformal optical system to suppress the residual aberrations. The feasibility of this method is verified by PSF, Strehl ratio, and image simulation. The design results show that the method can effectively reduce the number of optical elements and has good aberration elimination effect.

关 键 词：几何光学 共形整流罩 波前编码 像差抑制 光学设计 

分 类 号：TJ76[兵器科学与技术—武器系统与运用工程]