- Modeling a MEMS deformable mirror using non-parametric estimation techniquesDani Guzmán
Pontificia Universidad Catolica de Chile, Electrical Engineering Department, Vicuña Mackenna 4860, Santiago, Chile
Opt Express 18:21356-69. 2010..The model's input is the wavefront correction to apply to the mirror and its output is the set of voltages to shape the mirror. Our experiments have achieved positioning errors of 3.1% rms of the peak-to-peak wavefront excursion...
- Mitigation of vibrations in adaptive optics by minimization of closed-loop residualsAndres Guesalaga
Universidad Catolica de Chile, 4860 Vicuna Mackenna, Casilla 7820436, Santiago, Chile
Opt Express 21:10676-96. 2013..It is shown that a superior performance is obtained when compared to the standard integrator controller...
- Using artificial neural networks for open-loop tomographyJames Osborn
Dept of Electrical Engineering, Centre for Astro Engineering, Pontificia Universidad Catolica de Chile, Santiago, Chile
Opt Express 20:2420-34. 2012..It is therefore less susceptible to changing conditions than some existing methods. We also exploit the non-linear response of the ANN to make it more robust to noisy centroid measurements than other linear techniques...
- Comparison of vibration mitigation controllers for adaptive optics systemsAndres Guesalaga
Pontificia Universidad Catolica de Chile, 4860 Vicuna Mackenna, Casilla 7820436, Santiago, Chile
Appl Opt 51:4520-35. 2012....