• Title/Summary/Keyword: 행렬블락대각화

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Design of Approximate Feedback Controller for Two-Time-Scale Aircraft Dynamics (양시등급 항공기 동력학의 근사 궤환 제어기 설계)

  • Shim, Kyu-Hong;Sawan, M.E.;Hong, Sung-Kyung
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.32 no.5
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    • pp.58-64
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    • 2004
  • A new method to obtain approximate solutions by placing the only poles of the slow subsystem for the two-time-scale aircraft dynamic systems. The two kinds of approximate solutions are obtained by a matrix block diagonalization. One is called the uncorrected solution, and the other is called the corrected solution. The former has an error of $O({\varepsilon})$, and the latter has an error of $O({\varepsilon}^2)$. Of course, both solutions are robust enough even though they are reduced solutions. The excellence of the proposed method is illustrated by an numerical example of an aircraft longitudinal dynamics.