Development of software for a practical adaptive optics system based on personal computers

设计并搭建了自适应光学系统的光学装置。此外，我们还开发了AO系统所需的软件。利用原有的快速图像处理算法，实现了400 Hz左右的工作频率。通过室内实验对AO系统进行了研究，证实了该系统可以很好地补偿小于99Hz的湍流。平均互相关值由0.67上升至0.83，Strehl比值由0.12上升至0.58。系统性能的理论分析表明，AO系统的截止频率为105 Hz，与实验结果（99 Hz）吻合较好。将AO系统应用于飞驒天文台的太阳观测，证实了AO系统在D/r0=14的观测条件下是有效的。使用AO系统后，太阳图像的对比度从0.036提高到0.041。基于这些结果，我们研究了飞驒天文台一个实际的太阳观测AO系统的性能。我们发现工作频率必须进一步提高，并且需要一个新的具有50多个通道和更大行程的可变形镜。我们在《光学评论》杂志上发表了我们的论文，并在日本天文学会、太阳研究会议和日本光学学会上发表了我们的研究成果。

We designed and built the optical setup of the adaptive optics (AO) system. Also, we developed the software needed for the AO system. By virtue of original fast algorithms of image processing, we attained the working frequency of about 400 Hz.We investigate the AO system through laboratory experiments, and then confirmed that it worked well for compensating turbulence of less than 99Hz. The average cross-correlation vale rose from 0.67 to 0.83, and the Strehl ratio increased from 0.12 to 0.58.A theoretical analysis of the system performance showed that the cutoff frequency of the AO system is 105 Hz, which agreed well with the experimental result (99 Hz).We applied the AO system to solar observations at the Hida Observatory, and confirmed that the AO system worked effectively in seeing condition of D/r0=14. The contrast of solar images rose from 0.036 to 0.041 with use of the AO system.Assessing these results, we investigated the performance of a practical AO system for solar observation at the Hida Observatory.We found that the working frequency had to be improved further and a new deformable mirror was necessary with more than 50 channels and larger stroke.We published our paper in the journal "Optical Review" and presented our results in the Astronomical Society of Japan (2), Solar-research meetings (2), the Optical Society of Japan (2).