1 April 1995 New method for estimating wavefront from curvature signal by curve fitting
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Abstract
We present a new method to estimate the wavefront with the curvature-sensing technique proposed by F. Roddier. Instead of solving a Poisson equation for the curvature signal, we estimate the wavefront by direct least-squares curve fitting of the curvature signal with derivatives of Zernike polynomials. It is computationally simpler and faster. From computer simulations, it is shown that the curve-fitting method gives quite accurate wavefront estimation. It is especially useful when only a fixed number of aberration modes are of interest, as in the optical-axis adjustment of a telescope.
In Woo Han, In Woo Han, } "New method for estimating wavefront from curvature signal by curve fitting," Optical Engineering 34(4), (1 April 1995). https://doi.org/10.1117/12.196542 . Submission:
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