Modeling and real-time estimation of nominal system control commands

Author

Eure, Kenneth W. ; Weinstein, Bernice

Author_Institution

NASA Langley Res. Center, Hampton, VA, USA

Volume

2

fYear

2000

fDate

2000

Abstract

A strategy is presented for real-time detection of control law calculation errors caused by electromagnetic environments in critical flight control computers during laboratory validation testing. The detector estimates the nominal control command of the Flight Control Computer (FCC) in order to determine the correctness of the calculated command. This paper presents the theory linking state-space observers to those of embedded ARX observers. Additionally, a method for fast system identification is reviewed

Keywords

aerospace computing; aerospace control; autoregressive moving average processes; control system analysis computing; controllability; observability; real-time systems; state-space methods; Flight Control Computer; critical flight control computers; electromagnetic environment; embedded ARX observers; errors; laboratory validation testing; nominal system control commands; real-time detection; real-time estimation; state-space observers; system identification; Aerospace control; Computer errors; Control system synthesis; Detectors; Error correction; FCC; Joining processes; Observers; Real time systems; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Avionics Systems Conference, 2000. Proceedings. DASC. The 19th

Conference_Location

Philadelphia, PA

Print_ISBN

0-7803-6395-7

Type

conf

DOI

10.1109/DASC.2000.884900

Filename

884900