CAJ | 학술논문

为了解决微机械薄膜变形镜控制电压容易超出可行域范围的问题,提出了一种基于秉子法的电压求解方法.将控制电压求解的约束最优化问题,转化为求解一系列无约束最优化问题.该算法不但保证了最优解一定在可行域范围内,消除了常用算法采用"截止电压"方法带来的误差,而且还克服了罚函数法因惩罚因子取的太大而带来的病态问题.搭建基于OKO公司37通道微机械薄膜变形镜的自适应光学实验系统,分别以模拟眼和人眼出射渡前为入射畸变波前进行实验.与常用算法进行对比分析,结果表明,来子算法在稳定性和快速性上更优,为搭建小型化、低成本的人眼波前像差校正系统提供了算法支持.
위료해결미궤계박막변형경공제전압용역초출가행역범위적문제,제출료일충기우병자법적전압구해방법.장공제전압구해적약속최우화문제,전화위구해일계렬무약속최우화문제.해산법불단보증료최우해일정재가행역범위내,소제료상용산법채용"절지전압"방법대래적오차,이차환극복료벌함수법인징벌인자취적태대이대래적병태문제.탑건기우OKO공사37통도미궤계박막변형경적자괄응광학실험계통,분별이모의안화인안출사도전위입사기변파전진행실험.여상용산법진행대비분석,결과표명,래자산법재은정성화쾌속성상경우,위탑건소형화、저성본적인안파전상차교정계통제공료산법지지.
To solve the problem that the control channel voltage of micromachine membrane deformable mirror usually exceeds the feasible region, the approach for the voltage based on the multiplier is presented. The method converts the voltage solving question, a constrained optimization problem, into a series of unconstrained optimization problems. The algorithm guarantees that the optimal solution is in the feasible region, thus eliminating the errors brought by cut-off voltage method used in common algorithms. The ill-posed problems caused by the penalty function method are overcome if its penalty factor is too large. An adaptive optical experimental system based on a 37-channel MMDM from OKO company is built. The wavefront aberration of a model eye and a human eye is investigated as the incident wavefront of an experimental adaptive optics system. Results show that the multiplier method is more quick and stable than classical methods. An appropriate algorithm is presented for small and low-cost human eye wavefront aberration correction system.