Proceedings of International Conference on Applied Innovation in IT
2021/04/28, Volume 9, Issue 1, pp.7-11
Evaluation of the Noise Immunity of the MIAM Communication System
Ivan Pavlov, Valery Lebedyancev, Sergei Abramov, Maria Pavlova, Eugenia Abramova
Abstract: The article proposes a modification of the known invariant amplitude modulation that transmits the values of information elements by the ratio of the lengths of the signal vectors lying on a straight line passing through the origin of the coordinate system of the signal space . Modification of this modulation makes it possible to use signals whose vector ends lie on a straight line that does not necessarily pass through the origin of the signal space coordinate system. This gives the opportunity to use in a greater variety of signals, not just signals of similar shape as in the well-known invariant of amplitude modulation that can be useful to enhance immunity against a specific type of interference and to secrecy of messages transmitted. The article contains an assessment of the noise immunity of a communication system with modified invariant amplitude modulation to white noise and a description of its structural scheme.
Keywords: Group of Transformations, Communication Channel, Invariant Group of Transformations, Modified Invariant Amplitude Modulation, Noise Immunity, Invariant Communication System
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