SYNTHESIS OF INVENTORIES TO THE INTERFERENCE OF INFORMATION AND TELECOMMUNICATION SYSTEMS
DOI:
https://doi.org/10.26906/SUNZ.2019.6.115Keywords:
information and telecommunication system, invariance, error probability, adaptive obstacle, additive impediment, noise immunityAbstract
The article deals with the development of analytical algorithms of information and telecommunication systems formation that are invariant to the obstacle (additiveornon-aditiveone). The basic approaches to determine the class of obstacles for which an invariant system can be constructed are discussed and analyzed in detail. It is established that the invariance property of a feedback system guarantees the given probability of receiving information, but it does not guarantee a preset speed of information transmission. Studies have shown that invariance is achieved by reducing the noise immunity of additive noise. In a second-order phase-difference modulation system, the error probability is invariant to the signal frequency, but it is greater than the error rate in the system with phase-difference modulation at a constant signal frequency. As a result of the conducted researches it is established that the maximum of the undetected error does not depend on the characteristics of the interference, but is determined solely by the parameters of the correction code. The ways of improving the qualitative characteristics of information and telecommunication systems to ensure their invariance to the obstacle have been determined by analytical means, which is confirmed by simulation results and experimental dataDownloads
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