Closed-loop performance measures for flight controllers subject to neutron-induced upsets

Author

Gray, W. Steven ; Zhang, Hong ; González, Oscar R.

Author_Institution

Dept. of Electr. & Comput. Eng., Old Dominion Univ., Norfolk, VA, USA

Volume

3

fYear

2003

fDate

9-12 Dec. 2003

Firstpage

2465

Abstract

It has been observed that atmospheric neutrons can produce single event upsets in digital flight control hardware. The phenomenon has been studied extensively at the chip level, and now system level experiments are underway. In this paper analytical closed-loop performance measures for the tracking error are developed for a plant that is stabilized by a recoverable computer system subject to neutron induced upsets. The underlying model is a Markov jump-linear system with process noise. The steady-state tracking error is expressed in terms of a generalized observability Gramian.

Keywords

aerospace computing; aerospace control; closed loop systems; control nonlinearities; digital control; error analysis; stability; system recovery; Markov jump-linear system; atmospheric neutrons; closed-loop performance; digital flight control hardware; flight controllers; neutron-induced upsets; observability Gramian; process noise; recoverable computer system; tracking error measurement; Aerospace control; Atmospheric measurements; Computer errors; Hardware; Neutrons; Observability; Performance analysis; Semiconductor device measurement; Single event upset; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 2003. Proceedings. 42nd IEEE Conference on

ISSN

0191-2216

Print_ISBN

0-7803-7924-1

Type

conf

DOI

10.1109/CDC.2003.1272990

Filename

1272990