Piecewise-constant guidance for aeroassisted maneuvers (original) (raw)

Aiaa Atmospheric Flight Mechanics Conference, 1992

Abstract

This paper proposes the use of piecewise constant control in aeroassisted orbital transfers. Aeroassisted orbital transfers can be achieved in practice through direct lift modulation or bank angle modulation. Practical implementation prefers constant lift coefficients. On the other hand, controls need to vary in order to cope with uncertainties in the atmosphere. As a result, piecewise constant lift or bank modulation presents a practically useful form. In this paper, several related problems in using piecewise constant lift control are discussed. In particular, the energy is used as the independent variable, and maps of state variables achievable with constant lift controls are provided.

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