提出一种基于波前像差模式系数求解的相位解缠算法,该算法是基于波前可利用Zernike多项式进行精确表示来实现的。它通过求解对应Zernike多项式的系数,实现快速精确的相位解缠。以基于二元像差模式测量的波前传感技术中的相位解缠为研究目标,利用数值仿真对该算法的可行性进行验证。数值仿真结果表明,相对于最小二乘法而言,该相位解缠算法在解缠绕的精度和速度等方面均实现了大幅度提升。

A phase unwrapping algorithm is proposed based on the coefficient solution of wavefront aberration mode. The algorithm is implemented on the basis that wavefront can be accurately represented by Zernike polynomials. By solving the coefficients of the corresponding Zernike polynomials, we realized a fast and accurate phase unwrapping. Taking the phase unwrapping in the wavefront sensing based on binary aberration mode measurement as the research target, we verify the feasibility of the algorithm by numerical simulation. Numerical simulation results show that compared with the least square phase unwrapping algorithm, the proposed phase unwrapping algorithm realizes a great improvement in accuracy and speed of unwrapping.