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Application Of H 2 /H ∞ Technique To Aircraft Landing Control
Author(s) -
Lungu Mihai,
Lungu Romulus
Publication year - 2015
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.1132
Subject(s) - robustness (evolution) , control theory (sociology) , aircraft noise , robust control , aviation , soft landing , noise (video) , engineering , control system , controller (irrigation) , general aviation , computer science , aerospace engineering , control (management) , artificial intelligence , biochemistry , chemistry , electrical engineering , macroeconomics , noise reduction , economics , image (mathematics) , gene , agronomy , biology
The paper describes the automatic control of an aircraft in the longitudinal plane during landing, taking into account sensor errors and disturbances. Aircraft auto‐landing is achieved by combining H 2 and H ∞ control techniques, thereby obtaining a robust H 2 /H ∞ controller. It provides good precision tracking and robust stability with respect to the uncertainties caused by different disturbances and noise‐type signals. The weights of the H 2 and H ∞ control techniques within the robust H 2 /H ∞ controller are adjusted so that the aircraft accurately tracks the desired trajectory during the two main stages of the landing process. The theoretical results are validated by numerical simulations for the landing of a Boeing; the results are very good (Federal Aviation Administration accuracy requirements for Category III are met) and prove the robustness of the new auto‐landing system even in the presence of disturbances and sensor errors.