Nonlinear adaptive control of highly maneuverable high performance aircraft Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/41687m43n

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  • This thesis presents an effective control design methodology using a one-step-ahead prediction adaptive control law and an adaptive control law based on a Lyapunov function. These control law were applied to a highly maneuverable high performance aircraft, in particular, a modified F/A-18. An adaptive controller is developed to maneuver an aircraft at a high angle of attack even if the aircraft is required to fly over a highly nonlinear flight regime. The adaptive controller presented in this thesis is based on linear, bilinear, and nonlinear prediction models with input constraints. It is shown that the linear, bilinear, and nonlinear adaptive controllers can be constructed to minimize the given cost function or Lyapunov function with respect to the control input at each step. The control is calculated such that the system follows the reference trajectory, and such that control signal remains within its constraints. From several simulation results, the nonlinear controller is controller is better than the linear controller. A nonlinear adaptive control law based on a Lyapunov function is designed such that control inputs are smoother than for the one-step-ahead prediction adaptive controller.
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  • File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0 on a Canon DR-9050C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-12-05T19:55:23Z (GMT) No. of bitstreams: 1 ChoSul1994.pdf: 3256357 bytes, checksum: 14840468e8c209c7fef25593a94374f6 (MD5)
  • description.provenance : Submitted by Kirsten Clark (kcscannerosu@gmail.com) on 2012-12-05T19:54:22Z No. of bitstreams: 1 ChoSul1994.pdf: 3256357 bytes, checksum: 14840468e8c209c7fef25593a94374f6 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-12-05T20:03:21Z (GMT) No. of bitstreams: 1 ChoSul1994.pdf: 3256357 bytes, checksum: 14840468e8c209c7fef25593a94374f6 (MD5)
  • description.provenance : Made available in DSpace on 2012-12-05T20:03:21Z (GMT). No. of bitstreams: 1 ChoSul1994.pdf: 3256357 bytes, checksum: 14840468e8c209c7fef25593a94374f6 (MD5) Previous issue date: 1993-10-14

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