Zonal wave-front estimation from phase derivative measurements on unconnected domain
Proceedings of SPIE(2019)
Abstract
For a wavefront tested by Shack-hartmann wavefront sensor, the zonal integration method is often chosen by researchers to solve the reconstruction problem. But it has shown an unacceptable result when the phase derivative data is distributed on an unconnected domain, the obtained wavefront will contain different piston error on each subdomain Therefore, a new zonal wavefront estimation algorithm is proposed to deal with this drawback, which uses a simultaneous fit method to correct piston error of each subdomain The validity of the algorithm is verified by a numerical simulation and experimental results.
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Key words
Wavefront sensing,zonal reconstruction,simultaneous fit
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