Modulation and coding for satellite and space communications

Article Abstract:

Recent advances in modulation and coding include a low-rate, long-constraint-length convolutional code implemented on the Galileo spacecraft, which will orbit Jupiter and probe its atmosphere. Continued progress in parallel computer processing and in VLSI technology make it possible to implement codes with considerably higher complexity than that of Voyager, which is used as the baseline system. Developments include a VLSI high-speed, 8-bit Reed-Solomon decoder; a 300 Mbit per second modem with continuous phase modulation and coding; and trellis-coded modulation techniques for satellite-based mobile communication applications. Both deep-space and satellite communications benefit from these advances in modulation and coding.

Author: Yuen, Joseph H., Simon, M.K., Miller, W., Pollara, F., Ryan, C.R., Divsalar, D., Morakis, J.
Publisher: Institute of Electrical and Electronics Engineers, Inc.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1990
Satellite communications, Very large scale integration, Modulation Technique, Coding, Decoders, Decoders (Computers), Very-Large-Scale Integration, technical

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Inter-system communications-networking

Article Abstract:

As the largest users of real-time data, electric utilities have been making an effort to apply data communication networking technology to utility applications for real-time exchange. Planning the development as an inter-system communications network to support power applications and methods for modeling communication requirements are highlighted. The industry position concerning link installations and protocol development is also discussed.

Author: Robinson, John T.
Publisher: Institute of Electrical and Electronics Engineers, Inc.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1987
Telecommunications transmission technologies, Real time systems, Real-Time System, Power Systems, Data Communications

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