为了校正机载共形光学窗口引入的随观察视角变化的动态像差,提出基于计算成像的共形光学系统像差校正方法。通过建立非相干成像系统模型,给出波前编码系统消除共形光学窗口动态像差的原理和成像过程,阐明基于计算成像的共形光学系统的设计准则和掩模板的优化流程,利用倾斜边缘法定量分析该系统的传递能力。实验结果表明,通过计算成像的方法可以校正机载共形光学系统的动态像差,并且无需加入复杂的校正器件,该系统具有结构简单和稳定性强的优点。

To correct the dynamic aberrations introduced by an airborne conformal optical window that changes with viewing angle, a method for aberration correction of the conformal optical system based on computational imaging is proposed herein. By establishing an incoherent imaging system model, the principle and imaging process of the wavefront encoding system to eliminate the dynamic aberrations of the conformal optical window are given, and the design criteria of the conformal optical system based on computational imaging and the optimization process of the mask are clarified, and the transmission capability of the system is quantitatively analyzed by using the tilted edge method. Experimental results show that the dynamic aberration of the airborne conformal optical system can be corrected using the computational imaging method, and there is no need to add complex correctional devices, the system has the advantages of a simple structure and strong stability.