Design of frequency-based controllers for vibration mitigation at the Gemini-South telescope
Reduction of tip and tilt vibrations at the Gemini South MCAO System (GeMS) is addressed in this paper. A frequency framework for the synthesis of controllers is described, with particular emphasis on the search for better closed-loop performances by minimizing a H2 norm of the tilt residuals. Previous results have shown that modeling the turbulence via identification tools using standard AR or Laplace representations can lead to non-optimal solutions, resulting in excessive rejection of...[Show more]
|Collections||ANU Research Publications|
|Source:||Proceedings of SPIE - The International Society for Optical Engineering|
|01_Guesalaga_Design_of_frequency-based_2012.pdf||395.73 kB||Adobe PDF|
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