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

基于个人计算机的实用自适应光学系统软件的开发

• 批准号: 17540209
• 负责人: MIURA Noriaki
• 金额: $ 1.86万
• 依托单位: Kitami Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17540209/
• 关键词: Adaptive Optics; Solar Observation

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).

设计并搭建了自适应光学系统的光学系统。此外，我们还开发了AO系统所需的软件。利用原有的图像处理快速算法，获得了400赫兹左右的工作频率，并通过实验室实验对该系统进行了研究，证实了该系统对小于99赫兹的湍流有很好的补偿效果。对系统性能的理论分析表明，该系统的截止频率为105HZ，与实验结果(99 HZ)符合得很好。我们将该系统应用于日田天文台的太阳观测，证实了该系统在D/R0=14的视场条件下能够有效地工作。利用该系统，太阳图像的对比度从0.036提高到0.041。结果表明，采用该系统后，太阳图像的对比度从10%提高到了0.041。我们对日田天文台用于太阳观测的实用光学光学系统的性能进行了调查。我们发现工作频率需要进一步提高，需要一种新的具有50多个通道和更大行程的可变形反射镜。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(2)、太阳研究会议(2)和日本光学学会(2)上公布了我们的结果。

项目成果

Solar adaptive optics system based on software control

基于软件控制的太阳自适应光学系统

• 发表时间: 2006
• 期刊: Optical Review 13
• 作者: N. Miura;T. Kobayashi;S. Sakuma;S. Kuwamura;N. Baba;Y. Hanaoka;S. Ueno and R. Kitai
• 通讯作者: S. Ueno and R. Kitai