Title :
Stability analysis of upset recovery methods for electromagnetic interference [flight control systems]
Author :
Gonzalez, Oscar R. ; Gray, IT Steven ; Tejada, Arturo ; Patilkulkarni, Sudarshan
Author_Institution :
Old Dominion Univ., Norfolk, VA, USA
Abstract :
In this paper a recently developed analytical tool is explained and used to determine the effect on stability of standard error recovery systems on a model of a Boeing 737 used for research at the NASA Langley Research Center. In particular, this paper analyzes the effect of error recovery rollback, reset, and cold restart systems in a digital flight controller subject to transient upsets induced by high intensity electromagnetic interference (EMI) or lightning. Different recovery methodologies are compared by determining the maximum frequency of transient upsets that maintains mean-square stability of the flight control system
Keywords :
aircraft computers; aircraft control; closed loop systems; electromagnetic interference; fault tolerant computing; lightning; matrix algebra; sampled data systems; stability; system recovery; transients; B737 linear model; Boeing 737 model; NASA Langley Research Center; analytical tool; closed loop flight control system; cold restart systems; digital flight controller; electromagnetic interference; error recovery rollback systems; error reset systems; high intensity EMI; lightning; mean-square stability; recovery methodologies comparison; sampled-data closed-loop systems; stability analysis; stability robustness; standard error recovery systems; transient upsets; upset recovery methods; Control systems; Digital control; Electromagnetic analysis; Electromagnetic interference; Electromagnetic transients; Error correction; Lighting control; NASA; Stability analysis; Standards development;
Conference_Titel :
Digital Avionics Systems, 2001. DASC. 20th Conference
Print_ISBN :
0-7803-7034-1
DOI :
10.1109/DASC.2001.963313
