扩展目标低阶校正自适应光学系统的补偿效果

当自适应光学系统对扩展目标进行低阶模式校正时,系统存在非等晕误差.本文应用大气湍流波前扰动的Zemike多项式分解,推导了扩展目标情况下低阶校正自适应光学系统的模式非等晕误差和波前校正残余误差的关系表达式.在此基础上给出了光波水平大气传输时倾斜校正自适应光学系统波前残余误差的数值计算结果.此外还给出了太阳表面米粒结构低对比度扩展目标倾斜校正后的补偿成像实验结果.

Compensation Effectiveness Analysis of Low-order Correction Adaptive Optical System for Extend Object

It exists anisoplanatism error in low~order correction adaptive optical system. Based on the Zernike decomposition of wavefront distortion, the anisoplanatism error and the wavefront residual error of the low-order correction adaptive optical system for extend object are deduced theoretically in this paper. The numerical results of tip-tilt correction adaptive optical system for light wave horizontal propagation through atmospheric turbulence are presented. Furthermore, the experimental results for solar granulation, low-contrast extended object, are given.