Guidance trajectories for coplanar aeroassisted orbital transfer (AOT) from high earth orbit to LEO are presently optimized under the assumption of trajectory control during its endoatmospheric phase by alpha-dependent lift coefficient. Optimal trajectories are first computed by minimizing the total velocity impulse required for AOT; attention is then given to guidance trajectories capable of approximating such key properties of the optimal trajectories as minimum altitude, exit velocity, and exit path inclination, in real time. A switch is made from target-altitude guidance to target path inclination-guidance according to the velocity depletion required for optimum flight.
Optimization and guidance of trajectories for coplanar, aeroassisted orbital transfer
1990-09-01
Sonstige
Keine Angabe
Englisch
Guidance trajectories for aeroassisted orbital transfer
NTRS | 1990
|Guidance Trajectories for Aeroassisted Orbital Transfer
NTIS | 1990
|Fuel-optimal trajectories for aeroassisted coplanar orbital transfer problem
Tema Archiv | 1988
|Fuel-optimal trajectories for aeroassisted coplanar orbital transfer problem
Tema Archiv | 1990
|