Neighboring optimal guidance for aeroassisted orbital transfer

Author

Naidu, D. Subbaram ; Hibey, Joseph I. ; Charalambous, C.D.

Author_Institution

Coll. of Eng., Idaho State Univ., Pocatello, ID, USA

Volume

29

Issue

3

fYear

1993

fDate

7/1/1993 12:00:00 AM

Firstpage

656

Lastpage

665

Abstract

A neighboring optimal guidance scheme for a nonlinear dynamic system is devised with stochastic inputs and perfect measurements as applicable to fuel optimal control of an aeroassisted orbital transfer vehicle. For the deterministic nonlinear dynamic system describing the atmospheric maneuver, a nominal trajectory is determined. Then, taking modeling uncertainties into account, a linear, stochastic, neighboring optimal guidance scheme is devised. Assuming the additive character of the stochastic effects, the optimal trajectory is approximated as the sum of the deterministic nominal trajectory and the stochastic neighboring optimal solution. Numerical results are presented for a typical aeroassisted orbital transfer vehicle

Keywords

aerospace control; aerospace propulsion; linear systems; minimisation; nonlinear control systems; optimal control; space vehicles; stochastic systems; aeroassisted orbital transfer; aeroassisted orbital transfer vehicle; aerobraking; atmospheric maneuver; closed loop control; deterministic nominal trajectory; fuel optimal control; linear stochastic neighbouring optimal guidance; modeling uncertainties; neighboring optimal guidance; nonlinear dynamic system; optimal trajectory; simulation; stochastic effects; Aerodynamics; Atmospheric measurements; Extraterrestrial measurements; Fuels; Navigation; Nonlinear dynamical systems; Stochastic processes; Stochastic systems; Vehicle dynamics; Vehicles;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.220918

Filename

220918