The primary focus of this research is to develop and implement control schemes for combined broadband and narrowband disturbances to optical beams. The laser beam jitter control testbed developed at the Naval Postgraduate School is used for development of advanced jitter control techniques. First, we propose a least quadratic Gaussian feedback controller with integrator for cases when only the error signal (the difference between the desired and the actual beam positions) is available. An anti-notch filter is also utilized to attenuate a vibrational disturbance with a known frequency. Next, we develop feedforward adaptive filter methods for cases when a reference signal, which is highly correlated with the jitter disturbance, is available. A filtered-X recursive least-squares algorithm with an integrated bias estimator is proposed to deal with a constant bias disturbance. Finally, experimental results are provided to validate and compare the performance of the developed control techniques. The designed adaptive filter has a simple structure but shows good jitter rejection performance, thanks to the use of a reference signal.
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e-mail: drake.yoon@gmail.com
e-mail: batemans2001@att.net
e-mail: agrawal@nps.edu
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July 2011
Research Papers
Laser Beam Jitter Control Using Recursive-Least-Squares Adaptive Filters
Hyungjoo Yoon,
Hyungjoo Yoon
Senior Researcher
Satellite Control System Department,
e-mail: drake.yoon@gmail.com
Korea Aerospace Research Institute
, Daejeon 305-333, Korea
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Brett E. Bateman,
Brett E. Bateman
Postgraduate Student
Department of Physics,
e-mail: batemans2001@att.net
U.S. Naval Postgraduate School
, Monterey, CA 93943
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Brij N. Agrawal
Brij N. Agrawal
Distinguished Professor of Department of Mechanical and Astronautical Engineering, Director of Space Research and Design Center,
e-mail: agrawal@nps.edu
U.S. Naval Postgraduate School
, Monterey, CA 93943
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Hyungjoo Yoon
Senior Researcher
Satellite Control System Department,
Korea Aerospace Research Institute
, Daejeon 305-333, Koreae-mail: drake.yoon@gmail.com
Brett E. Bateman
Postgraduate Student
Department of Physics,
U.S. Naval Postgraduate School
, Monterey, CA 93943e-mail: batemans2001@att.net
Brij N. Agrawal
Distinguished Professor of Department of Mechanical and Astronautical Engineering, Director of Space Research and Design Center,
U.S. Naval Postgraduate School
, Monterey, CA 93943e-mail: agrawal@nps.edu
J. Dyn. Sys., Meas., Control. Jul 2011, 133(4): 041001 (8 pages)
Published Online: April 6, 2011
Article history
Received:
April 7, 2009
Revised:
October 14, 2010
Online:
April 6, 2011
Published:
April 6, 2011
Citation
Yoon, H., Bateman, B. E., and Agrawal, B. N. (April 6, 2011). "Laser Beam Jitter Control Using Recursive-Least-Squares Adaptive Filters." ASME. J. Dyn. Sys., Meas., Control. July 2011; 133(4): 041001. https://doi.org/10.1115/1.4003372
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