POWER SPECTRA DENSITY METHOD FOR CONTROL EFFECT ANALYSIS OF ADAPTIVE OPTICS SYSTEM
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Abstract
Using data which were measured from H-S wavefront sensor of an AO system, power spectra density(PSD) was calculated and compared between open loop and close loop conditions. This method can be used to analyze the time domain compensation ability of an AO control system. As an example, the control ability of a 61 element adaptive optics system with PI or Smith control algorithm is compared.
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