目前太阳活动观测存在视场小和分辨率低的问题。单共轭自适应光学系统可校正的视场范围较小, 多层共轭自适应光学系统使用三维重构的方法, 耗时长且过程繁琐; 而太阳地表层自适应光学系统只校正地表层湍流, 效率高, 能快速获得大视场、高分辨率图像。利用YAO软件, 在四导星阵列分布情况下, 应用平均算法对太阳, 地表层自适应光学系统在40″和60″优化视场、J和H波段的性能进行数值仿真, 并与相同条件下仿真得到的单共轭自适应光学系统性能结果进行比较。结果表明, 在60″~120″成像视场内, 地表层自适应光学系统的斯特列尔比值比单共轭自适应光学系统提高了130%~210%, 该结果与太阳自适应光学领域其他软件得到的仿真结果一致。

The observation of solar activity has problems of small field of view and low resolution. The field of view corrected by a single-conjugated adaptive optics system is small, and a multi-conjugated adaptive optics system based on the method of three-dimensional reconstruction is time-consuming and complex. However, a solar ground-layer adaptive optics system, which corrects ground-layer turbulence, can achieve high efficiency and large field of view, and obtain high-resolution images. In the case of the distribution of four star array and with the average algorithm, the YAO software is used to the numerical simulation of the solar ground-layer adaptive optical system with 40″ and 60″ optimized field of view in J and H bands, and the simulation results are compared with that of single-conjugated adaptive optics system simulation under the same conditions. The results show that Strehl ratio of the ground-layer adaptive optics system increases 130%-210% compared with that of single-conjugated adaptive optics system within imaging field of view of 60″-120″, which is consistent with the results obtained by other softwares in solar adaptive optics.