Title :
Fault recovery in linear systems via intrinsic evolution
Author :
Greenwood, Garrison W. ; Hunter, David ; Ramsden, Edward
Author_Institution :
Dept. of Electr. & Comput. Eng., Portland State Univ., OR, USA
Abstract :
We investigate fault recovery using reconfiguration for analog linear feedback control systems. We assume any faults occur only within the linear system and accessibility to its internal circuitry is impossible. Consequently, the only way to restore service - even degraded service - is by inserting a compensation network into the control loop. System failures are manifested by a change in the original bandwidth. The compensators are evolved intrinsically.
Keywords :
control systems; evolutionary computation; fault tolerance; feedback; linear systems; system recovery; analog linear feedback control systems; compensation network; control loop; fault recovery; intrinsic evolution; linear systems; system failures; Aging; Bandwidth; Capacitors; Circuit faults; Degradation; Filters; Hardware; Lattices; Linear feedback control systems; Linear systems;
Conference_Titel :
Evolvable Hardware, 2004. Proceedings. 2004 NASA/DoD Conference on
Print_ISBN :
0-7695-2145-2
DOI :
10.1109/EH.2004.1310819
