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http://dx.doi.org/10.5139/JKSAS.2007.35.11.999

Real-Time Estimation of Control Derivatives for Control Surface Fault Detection of UAV  

Lee, Hwan (한국항공우주연구원 첨단비행제어팀)
Kim, Eung-Tae (한국항공우주연구원 항공미래기술연구실)
Choi, Hyoung-Sik (한국항공우주연구원 첨단비행제어팀)
Choi, Ji-Young (한국항공우주연구원 첨단비행제어팀)
Lee, Sang-Kee (조선대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.35, no.11, 2007 , pp. 999-1005 More about this Journal
Abstract
In case of an abnormal condition of control surface, the real-time estimation of aerodynamic derivatives are required for the reconfigurable control system to be flight for missions or return to the head office. The goal of this paper is to represent a technique of fault detection to the control surface as a base research to the fault tolerant control system for safety improvement of UAV. The real-time system identification for the fault detection to the control surface was applied with the recursive Fourier Transform and verified through the HILS and flight test. The failures of the control surface are detected by comparing the control derivatives in fault condition with the normal condition. As a result from the flight test, we have confirmed that the control derivatives of fault condition less than about 50% in the normal condition.
Keywords
Real-time; Estimation; Control Derivatives; Fault Detection; Aerodynamic Derivatives;
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  • Reference
1 Timothy R. Moes, Mark S. Smith and Eugene A. Morelli, 'Flight Investigation of Prescribed Simultaneous Independent Surface Excitations for Real-Time Parameter Identification', AIAA Paper 2003-5702, Atmospheric Flight Mechanics Conference, Texas, Austin, Aug. 2003
2 Morelli, E. A. 'In-Flight System Identification', AIAA Paper 98-4261, Atmospheric Flight Mechanics Conference, Boston, MA, Aug. 1998
3 Morelli, E. A. 'Real-Time Parameter Estimation in the Frequency Domain', Proceedings of the 1999 AIAA Atmospheric Flight Mechanics Conference, AIAA paper 99-4043, Portland, Or, Aug. 1999
4 Brian L. Stevens and Frank L. Lewis, 'Aircraft Control and Simulation', 2nd Edition, John Wiley and Sons, Inc., 2003