TY - GEN
T1 - Identification and control of an experimental Adaptive Optics setup
AU - Soto-Munoz, Nicolas
AU - Langedijk, Constantijn
AU - Escarate, Pedro
AU - Carvajal, Rodrigo
AU - Aguero, Juan C.
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/11
Y1 - 2019/11
N2 - Adaptive optics have become the standard technique to compensate disturbances for ground based astronomy. Due to the demanding features of next generation telescopes, improved identification and control methods are required. In this paper we present the identification and control of an experimental adaptive optics system. The identification of the system's Tip and Tilt dynamics is performed using the Prediction Error Method. A spectral factorisation approach is used to identify the continuous time disturbance model for mechanical vibrations. Using the identified models, a pole placement method is used to design a controller that compensates for the disturbances. The performance of the designed controller was evaluated and compared with a traditional PI controller, showing an almost tenfold improvement on output variance with the proposed design.
AB - Adaptive optics have become the standard technique to compensate disturbances for ground based astronomy. Due to the demanding features of next generation telescopes, improved identification and control methods are required. In this paper we present the identification and control of an experimental adaptive optics system. The identification of the system's Tip and Tilt dynamics is performed using the Prediction Error Method. A spectral factorisation approach is used to identify the continuous time disturbance model for mechanical vibrations. Using the identified models, a pole placement method is used to design a controller that compensates for the disturbances. The performance of the designed controller was evaluated and compared with a traditional PI controller, showing an almost tenfold improvement on output variance with the proposed design.
KW - Adaptive Optics
KW - Control
KW - System Identification
UR - http://www.scopus.com/inward/record.url?scp=85081052117&partnerID=8YFLogxK
U2 - 10.1109/CHILECON47746.2019.8987598
DO - 10.1109/CHILECON47746.2019.8987598
M3 - Conference contribution
AN - SCOPUS:85081052117
T3 - IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies, CHILECON 2019
BT - IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies, CHILECON 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies, CHILECON 2019
Y2 - 13 November 2019 through 27 November 2019
ER -