Title :
Stability analysis of upset recovery methods for electromagnetic interference
Author :
González, Oscar R. ; Gray, W. Steven ; Tejada, Arturo ; Patilkulkarni, Sudarshan
Author_Institution :
Old Dominion Univ., Norfolk, VA, USA
Abstract :
Presents a tool to analyze the effect of error recovery systems on closed-loop flight control systems. In particular, the paper develops closed-loop models and analyzes the mean-square stability effect of error recovery rollback, reset, and cold restart systems in digital control systems. The error recovery mechanisms are triggered by transient or intermittent faults which could be caused, for example, by high intensity electromagnetic radiation. The tool is illustrated by analyzing a stabilizing controller for the longitudinal dynamics of the AFTI/F-16 aircraft. This example compares different recovery methodologies by determining the minimum interarrival spacing between upsets which maintains closed-loop mean-square stability
Keywords :
aircraft control; closed loop systems; control system analysis; electromagnetic interference; fault tolerance; linear systems; sampled data systems; stability; stochastic systems; AFTI/F-16 aircraft; closed-loop flight control systems; cold restart systems; electromagnetic interference; error recovery systems; intermittent faults; longitudinal dynamics; mean-square stability effect; stability analysis; transient faults; upset recovery methods; Aerospace control; Aircraft; Control systems; Digital control; Electromagnetic interference; Electromagnetic radiation; Error correction; Fault tolerant systems; Real time systems; Stability analysis;
Conference_Titel :
Decision and Control, 2001. Proceedings of the 40th IEEE Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-7061-9
DOI :
10.1109/.2001.980829
