Optimization and closed loop guidance of drag modulated aeroassisted orbital transferAn analysis of optimal and near optimal atmospheric flight trajectories for drag modulated aeroassisted orbital transfer is presented. An explicit and adaptive closed loop guidance approach for this mode of orbit transfer is also presented with performance near the optimal nominal trajectories. The orbital transfer of interest is for return from high earth orbit to low earth orbit. Most of what is discussed in this paper concerns the aeroassisted or atmospheric segment which lowers the apogee of the high earth orbit to the apogee of the low earth orbit. Minimization of the total impulsive delta-V at this low earth orbit apogee is the optimization criterion. Control about this impulse due to a number of potential error sources in atmospheric braking is the requirement imposed on closed loop guidance.
Document ID
19830060705
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kechichian, J. A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cruz, M. I. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Rinderle, E. A. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Vinh, N. X. (Michigan, University Ann Arbor, MI, United States)