Voyager telecommunications - The broadcast from Jupiter

Details Voyager telecommunications - The broadcast from Jupiter Voyager telecommunications - The broadcast from Jupiter

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979sci...204..913e&link_type=abstract

Science, vol. 204, June 1, 1979, p. 913-921.

Computer Science

4

Broadcasting, Data Links, Data Processing, Data Transmission, Jupiter (Planet), Spacecraft Communication, Voyager Project, Coding, Command And Control, Communication Equipment, Ground Truth, Integrated Circuits, Microwave Transmission, Radiometers, Space Probes, Spacecraft Design, Telemetry

Scientific paper

The means by which the data collected by the Voyager 1 mission to Jupiter were returned to earth are presented. Radio links between the earth and the spacecraft are used for the transmission of both imaging and nonimaging telemetry from the spacecraft and commands from the earth and for radiometric observations of the spacecraft and its environment. Features which have lead to vast improvements in the capability of the Voyager telecommunications system over that of previous space probes include the use of X-band rather than S-band telemetry, a dual power X-band traveling wave tube amplifier, a 3.7 m spacecraft antenna and a single channel telemetry system with concatenated coding. Communications equipment at the three ground complexes of the Deep Space Network for telemetry reception includes 64 m steerable antennas, cryogenic maser preamplifiers and a phase-lock loop receiver. Voyager 1 has met or exceeded all of its telecommunications requirements, providing a 98% data return and a total of 2 x 10 to the 11th data bits during the Jupiter encounter.

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