Algorithm for controlling the descent of a spacecraft onto a prescribed area on the Martian surface

Details Algorithm for controlling the descent of a spacecraft onto a prescribed area on the Martian surface Algorithm for controlling the descent of a spacecraft onto a prescribed area on the Martian surface

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978kosis..16..198i&link_type=abstract

Kosmicheskie Issledovaniia, vol. 16, Mar.-Apr. 1978, p. 198-207. In Russian.

Physics

Descent Trajectories, Mars Landing, Soft Landing, Spacecraft Control, Trajectory Optimization, Algorithms, Atmospheric Entry, Ballistic Trajectories, Spacecraft Control

Scientific paper

The paper deals with the ballisticonavigational aspects of achieving a precise soft landing at a prescribed point on the Martian surface. The maximal and minimal range of flight are determined, along with the sighting range of descent. Control algorithms for precise Martian soft landings are synthesized. The influence of insufficient knowledge of the atmospheric entry conditions on the precision of soft landing and the fuel consumption for descent is analyzed. Numerical data on the effectiveness of control algorithms in the presence of various perturbing factors are presented and discussed.

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