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A roadmap for optimal control: the right way to commute

Affiliations

• ¹ Department of Mechanical and Astronautical Engineering, Naval Postgraduate School, Monterey, CA 93943, USA. imross@nps.navy.mil

• PMID: 16510411
• DOI: 10.1196/annals.1370.015

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I Michael Ross. Ann N Y Acad Sci. 2005 Dec.

• ¹ Department of Mechanical and Astronautical Engineering, Naval Postgraduate School, Monterey, CA 93943, USA. imross@nps.navy.mil

• PMID: 16510411
• DOI: 10.1196/annals.1370.015

Item in Clipboard

Optimal control theory is the foundation for many problems in astrodynamics. Typical examples are trajectory design and optimization, relative motion control of distributed space systems and attitude steering. Many such problems in astrodynamics are solved by an alternative route of mathematical analysis and deep physical insight, in part because of the perception that an optimal control framework generates hard problems. Although this is indeed true of the Bellman and Pontryagin frameworks, the covector mapping principle provides a neoclassical approach that renders hard problems easy. That is, although the origins of this philosophy can be traced back to Bernoulli and Euler, it is essentially modern as a result of the strong linkage between approximation theory, set-valued analysis and computing technology. Motivated by the broad success of this approach, mission planners are now conceiving and demanding higher performance from space systems. This has resulted in new set of theoretical and computational problems. Recently, under the leadership of NASA-GRC, several workshops were held to address some of these problems. This paper outlines the theoretical issues stemming from practical problems in astrodynamics. Emphasis is placed on how it pertains to advanced mission design problems.

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