光学学报, 1998, 18 (10): 1366, 网络出版: 2006-10-18
自适应光学对大气扰动波前的补偿效果研究I. 理论推导
Compensation Effect of an Adaptive Optics System for Atmosphere Induced Wavefront Perturbation I. Theoretical Anaysis
自适应光学 大气光学 横向风 空间带宽 时间带宽 球面波 平面波 adaptive optics atmospheric optics transverse wind temporal bandwidth spatial bandwidth spherical wave plane wave
摘要
在采用冻结湍流假设和几何光学近似的条件下,得到了经自适应光学系统校正后的剩余波前相位扰动的结构函数。进而根据剩余相位结构函数与系统Strehl比的关系,求出了自适应光学系统的补偿效果受系统的时空传递函数、大气湍流、光波传播路径上的横向风、观察目标的旋转角速度以及系统时间延迟影响情况的解析表达式。
Abstract
The structure function of residual wavefront phase perturbation compensated by an adaptive optics system has been derived by means of frozen turbulence hypothesis and geometric optics approach. According to the relationship between Strehl ratio of the system and the residual phase structure function, the analytical expression about the influence of spatial temporal transfer function, atmospheric turbulence, transverse wind speed along the light propagation path, angular velocity of the observed object and time delay of the system on the compensation effect of the system has been obtained.
张德良, 姜文汉, 吴旭斌, 严海星, 李树山. 自适应光学对大气扰动波前的补偿效果研究I. 理论推导[J]. 光学学报, 1998, 18(10): 1366. 张德良, 姜文汉, 吴旭斌, 严海星, 李树山. Compensation Effect of an Adaptive Optics System for Atmosphere Induced Wavefront Perturbation I. Theoretical Anaysis[J]. Acta Optica Sinica, 1998, 18(10): 1366.
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