Methods for implementing communications in info-communication systems based on signal structures with specified properties

Abstract

The problems of increasing noise immunity (stealth operation of the system, noise immunity of signal reception), information security of information and communication systems (ICS) under the conditions of the influence of many external and internal threats on such systems are considered. It is shown that the solution of this problem is possible on the basis of improving the methodological foundations of ICS construction, by developing methods of information exchange, the synthesis of new classes of nonlinear discrete complex signals with the necessary ensemble, correlation and structural properties. A mathematical formulation and solution of the problem of synthesis of a nonlinear discrete complex signal systems with given ensemble, correlation, and statistical properties is given. The method of synthesis of one class of nonlinear discrete complex signals of cryptographic signals (CS) is presented. The results of the research of the properties of this class of signals are presented. Possible applications of CS in modern information and communication systems.