| 模型式无波前探测自适应光学系统收敛速度优化 |
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| 引用本文： | 吴阳,杨慧珍,徐奇,杨海波. 模型式无波前探测自适应光学系统收敛速度优化[J]. 激光杂志, 2020, 41(3): 67-72. DOI: 10.14016/j.cnki.jgzz.2020.03.067 |
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| 作者姓名： | 吴阳 杨慧珍 徐奇 杨海波 |
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| 作者单位： | 江苏海洋大学电子工程学院,江苏连云港222005;江苏海洋大学电子工程学院,江苏连云港222005;江苏省海洋资源开发研究院,江苏连云港222005;中国矿业大学信息与控制工程学院,江苏徐州221116;光电信息控制和安全技术重点实验室,天津300308 |
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| 基金项目： | 连云港市521高层次人才培养工程项目;江苏省研究生科研与实践创新计划项目;江苏省"六大人才高峰"高层次人才项目;教学改革项目;国家自然科学基金 |
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| 摘 要： | 基函数及其阶数的选择对模型式无波前探测自适应光学(AO-Adaptive Optics)系统的收敛速度和校正效果具有重要的意义。当变形镜(DM-Deformable Mirror)的本征模作为系统的基函数时,系统的收敛速度取决于本征模的阶数。考虑到实际应用中,低阶像差占整个像差的大部分,为加快模型式无波前探测AO系统的收敛速度,使用本征模的部分低阶模式作为系统的基函数,分析系统的收敛速度和校正能力。结果表明:当校正效果达到全阶模式校正效果的80%时,不论湍流强弱,系统收敛速度都有一定程度的提高。相同的波前像差下,变形镜单元数越多,系统收敛速度的优化空间越大。
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| 关 键 词： | 自适应光学系统 无波前探测 基函数 本征模 系统优化 |
Optimization of the convergence speed for model-based wavefront-sensorless adaptive optics system |
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| WU Yang,YANG Huizhen,XU Qi,YANG Haibo. Optimization of the convergence speed for model-based wavefront-sensorless adaptive optics system[J]. Laser Journal, 2020, 41(3): 67-72. DOI: 10.14016/j.cnki.jgzz.2020.03.067 |
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| Authors: | WU Yang YANG Huizhen XU Qi YANG Haibo |
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| Affiliation: | (Electronic and Engineering College,Jiangsu Ocean University,Lianyungang Jiangsu 222005,China;Jiangsu Marine Resources Development Research Institute,Lianyungang Jiangsu 222QQ5,China;Information and Control College,China University of Mining University,Xuzhou Jiangsu 221116,China;Electro-optical Information Security Control&Science and Technology Laboratory,Tianjin 300308,China) |
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| Abstract: | The choices of basis function and its order are of great significance to the convergence speed and correction effect of the model-type AO-Adaptive Optics system.When the eigenmode of the DM-Deformable Mirror is used as the basis function of the system,the convergence speed of the system depends on its order.Considering that low-order aberrations account for most of the entire aberrations in practical applications,in order to accelerate the convergence speed of the model-type wave-front detection AO system,this article uses some low-order modes of the eigenmode as the basis functions to analyze the convergence speed and the correction capabilities of the system.The results show that when the correction effect reaches 80%of full-order mode correction effect,the convergence speed of the system is improved to a certain extent regardless of the turbulence intensity.Under the same wave-front aberration,the more the number of anamorphic mirror units,the greater the optimization space for system convergence speed. |
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| Keywords: | adaptive optics system wavefront-sensorless basis functions eigenmodes system optimization |
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