为满足高速飞行器对目标快速识别和打击的需求, 针对大观测场高速机载光电探测系统像质退化严重、像质补偿元件机构复杂、像差校正实时性较差的问题, 提出采用可变形反射镜作为动态像质补偿器对传统高速动态成像光学系统像质进行补偿和改进.利用基于像清晰化函数最优化的自适应光学动态像质补偿技术的优化算法对系统动态像差进行闭环实时校正, 通过仿真对所提出的方法进行可行性分析和验证.仿真结果表明: 与校正前相比, 该校正方法使光学系统在60°大角度观测场内泽尼克动态像差变化量的峰谷值最大下降17.5%, 点列图弥散斑均方根半径降低至10.61%, 校正后的系统残余像差小, 在整个观测场内, 像质均接近光学衍射极限.

Confronted with the requirement of the high resolution earth-observation system of high-speed aircraft working in near-space environment,and the imaging system with dynamic optical windows is likely to suffer from extreme dynamic aberration,complex imaging quality compensators and bad real-time character,the traditional imaging quality compensation was improved and the adaptive optical (AO) technique was explored as a novel way of solving the problems.The image sharping function optimization closed-loop adaptive wavefront correction algorithm was used.Simulations results indicate that the correction method can make the PV (peak to valley) waves of the Zernike aberration term in reduce to about 17.5% and the RMS spot radius to about 10.61% less than before correction the system which has 60°FOR (field of regard).By correction with this method,the residual aberration is much less than the baseline system and the imaging performance can be almost diffraction limited.