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Title: Analysis of solutions to improve efficiency of signal processing devices in telecommunication
Authors: Boiko, J.M.
Eromenko, A.I.
Бойко, Юлій Миколайович
Єрьоменко, Олександр Іванович
Keywords: synchronization;stochastic equation;error variance
Issue Date: May-2015
Publisher: ORT Publishing, Stuttgart, Germany
Citation: Boiko J. M. Analysis of solutions to improve efficiency of signal processing devices in telecommunication / J. M. Boiko, A. I. Eromenko // Europaische Fachhochschule. European Applied Sciences. – 2015. – № 5. – P. 46-51.
Abstract: A description of the model of the synchronization means of telecommunications stochastic equations. The variance of the fluctuation of the synchronization error by solving the Fokker-Planck-Kolmogorov. Calculated error of numerical solution of the equation of a stationary grid method. We obtain the schedule of the distribution of the probability density synchronization errors for different values of the normalized time.
Description: The coherent and quasicoherent methods for signal receiving require phase auto-tuning frequency as obligate component which forms the reference signal from the received oscillation. To receive discrete information a system needs clock, word and frame synchronization. The important task of synchronization, which is to form reference oscillation at the receiving side of wireless connection, in most of the cases, becomes complicated due to influence of noise, which distorts the received signal, and in some cases due to random character of the signal itself. Such events entail fluctuational phase deviation, which is formed by reference oscillation synchronization system. The effectiveness of data transmission lowers consequently because of losses in transmission of data required for not only synchronization but also for the signal search time and transition onto monitoring mode for all synchronization systems of the receiver. This raises the question of improving synchronization system especially in case of using in communication systems frequency, phase and quadrature methods of manipulation. Thus, improving effectiveness of signal processing in satellite telecommunication is obviously necessary especially for its part which relates to providing its noise resistance in conditions of noise and hindrance. This objective has been achieved through development of methods and means for optimization of filtering devices and semigraphical interpretation of clock synchronization systems on the base of stochastic models what determines relevance of the subject. Paper represents obtained analytical and graphical changes of discriminatory characteristics at different values of signal to noise ratio, and research that bonds influence of signal to noise ratio and accuracy of clock synchronization device (CSD) on condition of their equal noise bands defined that at the level of E-3 the benefit of CSD-1 as compared with CSD-2 makes almost 0.98 dB, for CSD-3-2.7 dB.
ISSN: 2195-2183
Content type: Стаття
Appears in Collections:Кафедра телекомунікацій та радіотехніки

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