Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975aiaa.confr....v&link_type=abstract
American Astronautical Society and American Institute of Aeronautics and Astronautics, Astrodynamics Specialist Conference, Nass
Astronomy and Astrophysics
Astronomy
Automatic Control, Mars (Planet), Orbital Rendezvous, Planetary Orbits, Rendezvous Guidance, Spacecraft Docking, Apollo Spacecraft, Computerized Simulation, Mars Sample Return Missions, Mars Surface, Proportional Control, Self Adaptive Control Systems, Space Missions, Spacecraft Control, Terminal Guidance, Thrust Control, Viking Mars Program
Scientific paper
This paper describes principally the ascent phase of the Mars Surface Sample Return mission, where the terminal rendezvous phase is emphasized to describe a newly developed automatic rendezvous and docking system. The autonomous rendezvous and docking in Mars orbit is used to reduce the payload necessary to achieve the mission so that today's-sized spacecraft can be used. Proportional navigation guidance utilizing a simple control algorithm was developed and tested to accomplish the rendezvous. This simplified guidance scheme uses only one parabolic axial control curve generated on-board based on its dispersed state and requires no closing velocity change.
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