基于YAO软件的太阳地表层自适应光学系统的仿真

发布时间：2018-11-10 09:40

【摘要】：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。
[Abstract]:At present, the problems of small field of view and low resolution exist in solar activity observation. The single conjugate adaptive optical system has a small corrected field of view. The multilayer conjugate adaptive optical system uses the method of 3D reconstruction, which takes a long time and the process is tedious. However, the solar surface adaptive optical system only corrects the turbulence on the surface of the earth, so it can obtain large field of view and high resolution images quickly. With the help of YAO software, the average algorithm is used to simulate the performance of the solar and surface adaptive optical systems in 40 "and 60" optimal field of view, J and H bands. The results are compared with the simulation results of single conjugate adaptive optical system under the same conditions. The results show that in the field of view of 60 "~ 120" imaging, the Stryer ratio of the ground surface adaptive optics system is 130 ~ 210 higher than that of the single conjugate adaptive optical system. The results are in agreement with the simulation results obtained by other software in the field of solar adaptive optics.
【作者单位】：中国科学院国家天文台南京天文光学技术研究所;中国科学院天文光学技术重点实验室;中国科学院大学;加利福尼亚州立大学北岭分校物理与天文学院;
【基金】：国家自然科学基金国际(地区)合作与交流项目(11220101001)
【分类号】：P182.2

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