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Correcting dynamic residual aberrations of conformal optical systems using AO technology 被引量:2
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作者 李岩 李林 +1 位作者 黄一帆 杜保林 《Chinese Physics B》 SCIE EI CAS CSCD 2009年第7期2769-2773,共5页
This paper analyses the dynamic residual aberrations of a conformal optical system and introduces adaptive optics (AO) correction technology to this system. The image sharpening AO system is chosen as the correction... This paper analyses the dynamic residual aberrations of a conformal optical system and introduces adaptive optics (AO) correction technology to this system. The image sharpening AO system is chosen as the correction scheme.Communication between MATLAB and Code V is established via ActiveX technique in computer simulation.The SPGD algorithm is operated at seven zoom positions to calculate the optimized surface shape of the deformable mirror.After comparison of performance of the corrected system with the baseline system,AO technology is proved to be a good way of correcting the dynamic residual aberration in conformal optical design. 展开更多
关键词 conformal optical design dynamic residual aberration SPGD algorithm micro-electro-mechanical systems deformable mirror
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Research on the optimal dynamical systems of three-dimensional Navier-Stokes equations based on weighted residual 被引量:4
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作者 NaiFu Peng Hui Guan ChuiJie Wu 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2016年第4期78-85,共8页
In this paper, the theory of constructing optimal dynamical systems based on weighted residual presented by Wu & Sha is applied to three-dimensional Navier-Stokes equations, and the optimal dynamical system modeli... In this paper, the theory of constructing optimal dynamical systems based on weighted residual presented by Wu & Sha is applied to three-dimensional Navier-Stokes equations, and the optimal dynamical system modeling equations are derived. Then the multiscale global optimization method based on coarse graining analysis is presented, by which a set of approximate global optimal bases is directly obtained from Navier-Stokes equations and the construction of optimal dynamical systems is realized. The optimal bases show good properties, such as showing the physical properties of complex flows and the turbulent vortex structures, being intrinsic to real physical problem and dynamical systems, and having scaling symmetry in mathematics, etc.. In conclusion, using fewer terms of optimal bases will approach the exact solutions of Navier-Stokes equations, and the dynamical systems based on them show the most optimal behavior. 展开更多
关键词 optimal dynamical systems weighted residual three-dimensional Navier-Stokes equations vortex structures
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