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题名:
High resolution imaging of phase-distorted extended object using SPGD algorithm and deformable mirror
作者: Yang, HZ ; Li, XY ; Jiang, WH
出版日期: 2008
会议名称: PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)
学科分类: 自适应光学
中文摘要: The conventional adaptive optics (AO) technique based on phase conjugate principle requires the information about a reference wave front that corresponds to the undistorted image when it is applied to extended source image correction. The AO technique based on the image function appears more promising than the conventional AO for this application. The success of this technique depends on an appropriate image quality criterion and a suitable control algorithm. We tried to find a convenient image performance metric not from additional optics elements, but only from the distorted image which is a gray level image. Simulation results showed the variance function of gray level presents more potential than other ways, such as ways based on the information about the gray level gradient of each pixel. Based on SPGD algorithm, an AO system was simulated with a 61-element deformable mirror and the above resultant image quality criterion. The correction capability of the AO system was investigated through different images and different level aberrations. Numerical simulation results verified the performance metric we used is effective. The system can correct different level disturbed images successfully when parameters of the algorithm were appropriate for static distorted wave-fronts.
收录类别: Ei
语种: 英语
卷号: 6834
ISSN号: 0361-0777
文章类型: 会议论文
页码: 83411-83411
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/1844
Appears in Collections:自适应光学技术研究室(八室)_会议论文

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Recommended Citation:
Yang, HZ,Li, XY,Jiang, WH. High resolution imaging of phase-distorted extended object using SPGD algorithm and deformable mirror[C]. 见:PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE).
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文件名: 2008-023.pdf
格式: Adobe PDF
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