2518-1092Research result. Information technologies2518-109210.18413/2518-1092-2018-3-2-0-61391SYSTEM ANALYSIS AND PROCESSING OF KNOWLEDGEON ESTIMATION OF FREQUENCY PROPERTIES OF ONE CLASS OF BROADBAND NOISE-LIKE SIGNALS WITH LFMON ESTIMATION OF FREQUENCY PROPERTIES OF ONE CLASS OF BROADBAND NOISE-LIKE SIGNALS WITH LFMBelovSergey PavlovichBelovSergey Pavlovichbelovssergei@gmail.comMatorinSergey IgorevichMatorinSergey Igorevichmatorin@bsu.edu.ruBelovAlexander SergeevichBelovAlexander Sergeevichbelov_as@bsu.edu.ruRachinskySergey AndreevichRachinskySergey Andreevich677110@bsu.edu.ruNetesaVyacheslav VladimirovichNetesaVyacheslav Vladimirovich20183200

Now, in the conditions of a continuous increase in information exchange between territorially distributed subscribers, there is a need to increase the efficiency of using the time-frequency resources of existing communication channels of various physical nature. However, when using narrowband signals in satellite communication systems using satellites in a highly elliptical orbit as carriers, the efficiency of using the allocated frequency-time resources of the communication channel is significantly reduced due to the large frequency uncertainty caused by the Doppler Effect and the time variations arrival of received signals. In this connection, the frequency properties of a class of broadband noise-like signals with LFM (BB NL with LFM), invariant to the Doppler mismatch in frequency, are considered in the real range of its variation. The use of this signal as an information carrier in these systems allows minimizing the cost of time-frequency resources of satellite communication channels due to the efficient use of the dedicated frequency band.

Now, in the conditions of a continuous increase in information exchange between territorially distributed subscribers, there is a need to increase the efficiency of using the time-frequency resources of existing communication channels of various physical nature. However, when using narrowband signals in satellite communication systems using satellites in a highly elliptical orbit as carriers, the efficiency of using the allocated frequency-time resources of the communication channel is significantly reduced due to the large frequency uncertainty caused by the Doppler Effect and the time variations arrival of received signals. In this connection, the frequency properties of a class of broadband noise-like signals with LFM (BB NL with LFM), invariant to the Doppler mismatch in frequency, are considered in the real range of its variation. The use of this signal as an information carrier in these systems allows minimizing the cost of time-frequency resources of satellite communication channels due to the efficient use of the dedicated frequency band.

minimization of costs of time-frequency resources of satellite communication channelsbroadband noise-like signals with LFMDoppler Effectminimization of costs of time-frequency resources of satellite communication channelsbroadband noise-like signals with LFMDoppler EffectСписок литературы1. Barhota, V.A., Gorshkov V.V., ZHuravlev V.I. Communication systems with spreading of signals spectrum // Itogi Nauki i Tekhniki, Svyaz. – M.: Sov. Radio, 1973. 424 p.2. Volkov, L.N., Nemirovskij, M.S., SHinakov, YU.S. Digital radio communication systems: basic methods and characteristics. – M.: EHko-Trendz, 2005. 392. p.3. Galkin, V.A. Digital mobile radio communication. – M.: Goryachaya liniya-Telekom, 2007. 432 p.4. Dyatlov, A.P., Dyatlov, P.A. An analysis of noise immunity of detectors of connected chirp signals // Special'naya tekhnika, 2009. №2. pp. 15-22.5. Zyuko, A.G., Korobov, YU.F. Theory of signal transmission. – M.: Svyaz', 1972. – 282 p.6. Kochemasov, V.N., Belov, L.A., Okoneshnikov, V.S. Formation of signals with linear frequency modulation. – M.: Radio i svyaz', 1983. 192 p.7. Kochemasov, V.N., Kryazhev, V.P., Okoneshnikov, V.S. Chirp signals with intrapulse phase manipulation // Radiotechnika, 1980. Vol. 35. №2. pp. 57-60.8. Cook, C., Bernfeld, M. Radar signals. M.: Sov. radio. – 1971. 568p.9. Prokis, Dzhon. Digital Communication. with English. under. Ed. D.D. Klovskiy. – M.: Radio i svyaz', 2000. 800 p.10. Sklyar, Bernard. Digital communication. Theoretical bases and practical application. – M.: izdatel'skij dom «Vil'yams», 2003. 1104p.11. Harkevich, A.A. Spectrum and analysis. – M.: GITTL. 1952. – 192 p.