Boiko D. The method of optimizing the digital transmission systems on the criterion of minimum error probability of transmission under restriction to the peak power and influence of the synchronization process

The object of study - the process of synchronization and phasing signal of the receiving generator equipment. The purpose of the study - increased noise immunity of digital transmission systems (DSP) due to the optimal distribution of the energy potential between the information and synchronizing channels on the criterion of minimum error probability of transmission by limiting the peak power of the transmitter, taking into account the destabilizing processes in the channel synchronization. Methods: Methods of the theory of electrical communication, complex systems theory, probability theory, mathematical statistics and mathematical analysis. Scientific novelty: 1) was further developed the method of distribution of energy potential between the information and sync channels of digital transmission systems by the minimum probability of transmission errors; 2) has been further developed a mathematical model estimates of numerical characteristics of the PLL with a delay in generator equipment DSP, which improves the accuracy assess the quality of the PLL; 3) were first obtained depending on the numerical characteristics of jitter and wander the sync signal from the noise variance, which allow to take into account their impact on the noise immunity of DSP. Practical results: - the expressions for engineering calculations of the required energy potential of information and synchronizing DSP channels on the basis of the proposed method of optimal matching parameters of channels on the criterion of minimum error probability of transmission is received; - the device invert zeros Manchester code, which ensures that the guaranteed 50% of the signal energy in the allocation of harmonic of the clock frequency is proposed; - obtained numerical characteristics of jitter and wander signal, instability of the amplitude and fluctuation component of phase of the signal controlled generator, which allow the assessment of these destabilizing factors in the modernization of existing and developing new DSP with limited peak power level; - based on the methods of compensating for jitter and wander of harmonic of the clock frequency offered to technical solutions and the algorithm that make it possible to reduce the effect of destabilizing effects on the noise immunity DSP. Area of application - telecommunication systems and networks.