Communication system for the Viking mission to Mars

Details Communication system for the Viking mission to Mars Communication system for the Viking mission to Mars

Sep 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974rcaen..20...16b&link_type=abstract

RCA Engineer, vol. 20, Aug.-Sept. 1974, p. 16-23. NASA-sponsored research.

Computer Science

Communication Equipment, Mars (Planet), Microwave Transmission, Spacecraft Communication, Viking Mars Program, Constraints, Launch Windows, Microwave Equipment, Mission Planning, Planetary Quarantine, Radio Transmitters, Space Exploration, Systems Engineering, Viking Lander Spacecraft, Viking 1975 Entry Vehicle

Scientific paper

The Viking communications system discussed comprises a UHF relay link and an S-band communication link. The design of both links was guided by the design of the mission itself and its constraints. The most important of these are: the available launch opportunities; the effect of interplanetary distances on the power and bandwidth of the S-band link; weight; reliability and survival in the Martian environment; the up-link command philosophy; the landing problem; and the requirements for planetary quarantine and cleanliness. The Viking mission, with its orbits and trajectories, launch and landing sequences is described and illustrated.

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