Error analysis of correlating Shack-Hartmann wave-front sensor for a point source
文献类型：期刊论文
| 作者 | Chen Lin-Hui1,2,3; Rao Chang-Hui1,2 |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2011-09-01 |
| 卷号 | 60期号:9 |
| 关键词 | correlating Shack-Hartmann wavefront sensor correlation algorithm centroiding algorithm measuring error |
| 英文摘要 | In Shack-Hartmann wavefront sensor(SH-WFS) based adaptive optics system, the centroiding algorithm is usually used to estimate the centroid of a point source spot. But the detecting accuracy of the centroiding algorithm is affected by many factors such as threshold selection, so that the centroid position of the spot cannot be evaluated accurataly under the condition of low signal-to-noise ratio (SNR). Comparatively the correlating algorithm for Shack-Hartmann wave front-sensing is more robust because it need not reduce the thresholding. In this paper, based on the the principle of the correlating SH-WFS, the measurement error of the correlating SH-WFS is derived by building up the noise model of the correlating SH-WFS. The influences of spot size, photon noise, read out noise and background light noise on the measurement of the correlating SH-WFS are analyzed systematically. The numerically simulation results and the experimental results are consistent well with the theoretical analyses. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | CENTROID COMPUTATION ; ADAPTIVE OPTICS ; MIRROR ; LIGHT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000295114000025 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/3410]  |
| 专题 | 光电技术研究所_光电技术研究所被WoS收录文章 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China 2.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen Lin-Hui,Rao Chang-Hui. Error analysis of correlating Shack-Hartmann wave-front sensor for a point source[J]. ACTA PHYSICA SINICA,2011,60(9). |
| APA | Chen Lin-Hui,&Rao Chang-Hui.(2011).Error analysis of correlating Shack-Hartmann wave-front sensor for a point source.ACTA PHYSICA SINICA,60(9). |
| MLA | Chen Lin-Hui,et al."Error analysis of correlating Shack-Hartmann wave-front sensor for a point source".ACTA PHYSICA SINICA 60.9(2011). |
入库方式： OAI收割
来源：光电技术研究所
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