Neighboring Optimal Guidance for Aeroassisted Orbital Transfer

D. Subbaram Naidu, Joseph L. Hibey, C. D. Charalambous

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


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, a neighboring, optimal guidance scheme is obtained. Taking modeling uncertainties into account, a linear, stochastic, neighboring optimal guidance scheme is devised. Finally, 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.

Original languageEnglish (US)
Pages (from-to)656-665
Number of pages10
JournalIEEE Transactions on Aerospace and Electronic Systems
Issue number3
StatePublished - Jul 1993


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