V.A. Lipatnikov – Dr.Sc. (Eng.), Professor, Senior Research Scientist Research Center,

Military Communications Academy named after Marshal of the Soviet Union S.M. Budyonny MO of the Russian

Federation

E-mail: lipatnikovanl@mail.ru

P.I. Kuzin – Lecturer,

Department «General Professional Disciplines»,

Military Communications Academy named after Marshal of the Soviet Union S.M. Budyonny MO of the Russian Federation

E-mail: Kuzik78@mail.ru

A.V. Rabin – Ph.D. (Eng.), Associate Professor, Director Research Coordination Center, 

Department of Aerospace Computer and Software Systems,

Saint Petersburg State University of Aerospace Instrumentation

E-mail: alexey.rabin@guap.ru

Existing methods for modeling the quality of digital communications based on adaptive radio links usually assume the stationarity of the parameters of the investigated system and the method of frequencies’ group use. The possibilities of these methods are largely limited due to the complexity of calculating the posterior distributions of a hypothetical environment that occurs when a signal is received. As a result of this, at present, in engineering practice, there are few models that make it possible to evaluate the quality of quasicoherent reception of adaptive radio lines even in simple situations of orthogonal signals’ transmitting.

To develop a way to increase the noise immunity of communication in channels with fading under the Nakagami distribution law.

Analytical dependences of the error probability and the radio link utilization coefficient on the permissible signal-to-interference ratio were obtained using intermittent communication in channels with fading according to the Nakagami distribution law. The method was developed to increase the noise immunity of communication in comparison with known reception methods. For example, with the fading depth 1,4, for the error probability 10–4, the energy gain will be more than 14 dB.

The proposed method can be used to provide electronic protection in various communication systems.

1. Sklyar B. Tsifrovaya svyaz'. Tekhnicheskie osnovy i prakticheskoe primenenie. Per. s angl. M.: Vil'yams. 2004. [in Russian]
2. Lipatnikov V.A., Tsarik O.V. Metody radiokontrolya. Teoriya i praktika. Monografiya. Ser. «Sistema tekhnicheskoy zashchity informatsii v Rossiyskoy Federatsii». SPb.: 2018. [in Russian]
3. Chuchin E.V. Sistema modeley kachestva peredachi tsifrovykh signalov po radiokanalam s zamiraniyami Nakagami. Nauchnyy zhurnal Kurskogo gosudarstvennogo universiteta. 2014. № 1. S. 42–44. [in Russian]
4. Kiselev I.G., Andrianov M.N. O povyshenii pomekhozashchishchennosti peredachi diskretnykh soobshcheniy v kanalakh s zamiraniyami. M.: Mobil'nye sistemy. 2007. № 4. S. 13–16. [in Russian]
5. Andrianov M.N. Osobennosti preryvistoy svyazi v kanale s lognormal'nymi zamiraniyami. M.: Metrologiya. 2009. № 5. S. 35–43.  [in Russian]
6. Rabin A.V., Dobrosel'skiy M.A., Lipatnikov V.A. Issledovanie kharakteristik pomekhoustoychivosti pri ispol'zovanii ortogonal'nogo kodirovaniya. Voprosy radioelektroniki. M.: TsNII «Elektronika». 2018. № 10/2018. Ser. «Obshchetekhnicheskaya» (OT). V. 6. S. 80–85. [in Russian]
7. Rabin A.V. Ortogonal'noe kodirovanie kak sposob povysheniya pomekhoustoychivosti pri peredache signalov po mnogoluchevym kanalam s zamiraniyami. Datchiki i sistemy. M.: OOO «Sensidat-Plyus». 2019. № 4 (235). S. 7–12. [in Russian]
8. Lipatnikov V.A., Kuzin P.I. Metod povysheniya operativnosti smeny parametrov adaptatsii pri prieme informatsii v sistemakh radiosvyazi KV- i UKV-diapazonov. Avtomatizatsiya protsessov upravleniya. 2016. № 4 (46). S. 18–22. [in Russian]
9. Patent RF № 2295761. Ustroystvo avtomaticheskogo vybora rabochikh chastot. Bitkov A.N., Zhilin A.V., Kasibin S.V., Komarovich V.F., Kuznetsov S.I., Lipatnikov V.A. Prioritet ot 13.07.2005. [in Russian]