Physics
Scientific paper
Aug 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974ifac.sympr....k&link_type=abstract
International Federation of Automatic Control, Symposium on Automatic Control in Space, 6th, Tsakhkadzor, Armenian SSR, Aug. 26-
Physics
Automatic Control, Descent Trajectories, Nonlinear Systems, Planetary Landing, Spacecraft Control, Trajectory Control, Aerodynamic Forces, Algorithms, Atmospheric Effects, Atmospheric Entry, Equations Of Motion, Invariance, Optimal Control, Systems Engineering
Scientific paper
An approach to the solution of the synthesis problem for a nonlinear system is proposed. The development of a control synthesis possessing invariant properties is described, whose task consists of achieving a pin-point landing by proper control of the spacecraft's descent in a planetary atmosphere in the presence of disturbances. Calculations show that the synthesized control law is characterized by high accuracy for a wide range of initial descent conditions and that it exhibits low sensitivity to measurement errors in these conditions and to perturbations of the atmospheric parameters and of the aerodynamic characteristics of the spacecraft.
Belov Anatoly V.
Khrustalev M. M.
Plotnikov Iu. P.
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