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T-Comm_Article 8_9_2021

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ANALYSIS OF THE PECULIARITIES OF ENCODING MESSAGES FROM VARIOUS SOURCES

Anastasia Yu. Kudryashova, Moscow Technical University of Communications
and Informatics, Moscow, Russia, asykka@bk.ru

Abstract
The influence of errors on the distortion of signals transmitted and received in different spaces, in the general case, is a problem that has not yet been resolved. With the beginning of the spread of digital transmission systems, it became necessary to interface (match) various digital signals (streams) generated in accordance with the frequency of the master oscillators of individual transmission systems and terminal sources of discrete signals. At the same time, as a rule, these master oscillators operating at nominally the same frequency were not synchronized with each other. As a result, due to the real instability of the master oscillator frequencies, growing phase mismatches arose, which must be compensated. In the well-known literature, particular cases of analysis and optimization of methods for displaying the original signal during its transformations during transmission from a source to a receiver have been investigated, and there is no general theory for studying this problem, the topic of this research is given in the article. The article examines the possibility of optimizing the choice of matching code combinations when comparing the elements of the original signal with its display when converting signals from one space to another. A method for determining the efficiency of signal conversion from one space to another is described.

Keywords: source message coding, metric space conversion, message transmission system, isochronous signals, anisochronous signals, synchronous digital path.

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Information about author:

Anastasia Yu. Kudryashova, post-grad. stud., Moscow Technical University of Communications and Informatics, Moscow, Russia