| 一种基于瞳面相位差的波前传感器相位恢复 |
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| 引用本文： | 杨慧珍,龚成龙.一种基于瞳面相位差的波前传感器相位恢复[J].光学学报,2011(11):124-129. |
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| 作者姓名： | 杨慧珍 龚成龙 |
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| 作者单位： | 淮海工学院电子工程学院; |
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| 基金项目： | 中国科学院自适应光学重点实验室(LAOF201102); 江苏省高技自然科学基金(11KJB510001)资助课题 |
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| 摘 要： | 根据瞳面相位差波前传感器的特点,提出把模式分解和随机并行梯度下降算法结合起来实现波前相位的恢复.以32单元变形镜的初始面形和Roddier提出的相位生成方法随机产生的一帧相屏为研究对象,分析所提出的相位恢复算法的性能.结果表明,两种情况下的畸变波前都得到了很好的恢复.当像差仅含有低阶成分时,使用模式分解法就可获得令人满...
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| 关 键 词： | 测量 波前传感器 相位差法 相位恢复算法 Zernike模式 随机并行梯度下降(SPGD) 噪声 |
Phase Retrieval for a Kind of Wavefront Sensor Based on Pupil Phase Diversity |
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| Yang Huizhen Gong Chenglong.Phase Retrieval for a Kind of Wavefront Sensor Based on Pupil Phase Diversity[J].Acta Optica Sinica,2011(11):124-129. |
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| Authors: | Yang Huizhen Gong Chenglong |
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| Institution: | Yang Huizhen Gong Chenglong(Department of Electronic Engineering,Huaihai Institute of Technology,Lianyungang,Jiangsu 222005,China) |
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| Abstract: | A kind of phase retrieval algorithm,which combines Zernike-mode decomposition with stochastic parallel gradient descent(SPGD),is raised to realize wavefront phase recovery based on pupil phase diversity(PPD).The performance of phase retrieval algorithm is analyzed through two different aberrated wavefronts.One is an initial shape of 32-element deformable mirror sampled by the interferometer;the other is generated through the method proposed by Roddier.Simulation results show that above two aberrated wavefro... |
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| Keywords: | measurement wavefront sensor phase diversity(PD) phase retrieval Zernike mode stochastic parallel gradient descent(SPGD) noise |
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