Near-optimal feedback controls for minimax-range pursuit-evasion problems between two constant-thrust spacecraft are generated by periodically resolving the differential game based on the actual system state using a modified version of a first-order differential dynamic programming algorithm. Compared to a previously developed technique that requires the backward integration of a matrix Riccati differential equation, this new technique can be implemented in real time much more easily, and it requires only a rough etimate of the optimal controls to start it instead of a complete two-point boundary-value problem solution. Numerical results are presented which illustrate the advantages and limitations of this new technique.
Feedback control for a pursuing spacecraft using differential dynamic programming
Rueckgekoppelte Steuerung eines verfolgenden Raumfahrzeugs mittels dynamischer Programmierung
AIAA Journal ; 15 , 8 ; 1084-1088
1977
5 Seiten, 7 Bilder, 7 Quellen
Aufsatz (Zeitschrift)
Englisch
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