1 October 2006 Variable-order adaptive control of a microelectromechanical steering mirror for suppression of laser beam jitter
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Abstract
We present an adaptive control scheme for laser-beam steering by a two-axis microelectromechanical systems (MEMS) fast steering mirror. Disturbances in the laser beam are rejected by a µ-synthesis feedback controller augmented by the adaptive control loop, which determines control gains that are optimal for the current disturbance acting on the laser beam. The variable-order adaptive controller is based on an adaptive lattice filter that implicitly identifies the disturbance statistics from real-time sensor data. Experimental results demonstrate that the adaptive controller significantly extends the disturbance-rejection bandwidth achieved by the feedback controller alone. The experimental results also illustrate the value of the variable-order capability of the adaptive controller.
© (2006) Society of Photo-Optical Instrumentation Engineers (SPIE)
Nestor O. Perez Arancibia, Nestor O. Perez Arancibia, Neil Chen, Neil Chen, James Steven Gibson, James Steven Gibson, Tsu-Chin Tsao, Tsu-Chin Tsao, } "Variable-order adaptive control of a microelectromechanical steering mirror for suppression of laser beam jitter," Optical Engineering 45(10), 104206 (1 October 2006). https://doi.org/10.1117/1.2363189 . Submission:
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