Matching orthogonal code symbols and modulation methods

Abstract

The objective of the article consists in a development and a research of the offered by the author orthogonal coding as a way of noise immunity’s increase using the example of the information communication systems with a phase-shift keying. It is shown that the orthogonal coding allows to provide the required quality of communication with the smaller energy cost. The energy gain in signal-to-noise ratio (up to 4.5 dB in the channels with the AWGN without error correcting) is provided by more effective use of energy of transmitted signals without increase in complexity and cost of transmitting/receiving devices. The main attention is paid to a development of the procedure of harmonization of symbols of an orthogonal code with phase-shift keying.