Predictive wavefront control for Adaptive Optics with arbitrary control loop delays

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We present a modification of the closed-loop state space model for AO control which allows delays that are a non-integer multiple of the system frame rate. We derive the new forms of the Predictive Fourier Control Kalman filters for arbitrary delays and show that they are linear combinations of the whole-frame delay terms. This structure of the controller is independent of the delay. System stability margins and residual error variance both transition gracefully between integer-frame delays.

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PDF-file: 27 pages; size: 0.3 Mbytes

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Poyneer, L A & Veran, J October 30, 2007.

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We present a modification of the closed-loop state space model for AO control which allows delays that are a non-integer multiple of the system frame rate. We derive the new forms of the Predictive Fourier Control Kalman filters for arbitrary delays and show that they are linear combinations of the whole-frame delay terms. This structure of the controller is independent of the delay. System stability margins and residual error variance both transition gracefully between integer-frame delays.

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PDF-file: 27 pages; size: 0.3 Mbytes

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  • Journal Name: Journal of the Optical Society of America, A, vol. 25, no. 7, July 1, 2008, pp. 1486-1496; Journal Volume: 25; Journal Issue: 7

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  • Report No.: UCRL-JRNL-236046
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 944297
  • Archival Resource Key: ark:/67531/metadc897043

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Office of Scientific & Technical Information Technical Reports

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  • October 30, 2007

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 6, 2016, 4:18 p.m.

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Poyneer, L A & Veran, J. Predictive wavefront control for Adaptive Optics with arbitrary control loop delays, article, October 30, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc897043/: accessed July 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.