Estimation of the possibilities of the combined synchronization system with open-link to minimize the dispersion of the phase error when tracking the carrier frequency under the conditions of the influence of additive noise

Turovsky, Oleksandr

doi:10.15587/2706-5448.2020.210242

Cited by 1 publication

(5 citation statements)

References 3 publications

(3 reference statements)

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“…It is known that optimizing the synchronization system to a minimum of phase error variance leads to a deterioration in its dynamics [3,5,7].…”

Section: Modeling the Process Of Forming A Transitional Component mentioning

confidence: 99%

“…Then the initial value of the k-th component of the transition component of the error, in accordance with expressions (4) and (5), at the simple roots of the equation F(S)=0, can be written in a general form as follows:…”

Section: Synthesizing a Link In The Disrupted Communication Of Thementioning

confidence: 99%

“…It is obvious that such schemes resolve the issue of maintaining the system's high dynamics at the predefined level of phase error variance by designing the scientifically based optimal construction schemes that function on the basis of built mathematical models. These mathematical models should take into consideration both the parameters of the components of the synchronization system construction circuit and the factors of external and internal perturbations, which was defined as a relevant scientific task in works [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…For a phase synchronization system, they may be due to cases when the input signal is received by the circuit for the first time, when the communication is interrupted, due to Doppler frequency shift, etc. [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…The specified model of CSS includes an additional link with a transfer function ( ) W S which was used to implement the disrupted link and build an open control channel[3,5].…”

mentioning

confidence: 99%

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Designing a system to synchronize the input signal in a telecommunication network under the condition for reducing a transitional component of the phase error

Беркман¹,

Tkachenko²,

Turovsky³

et al. 2021

EEJET

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The quality of reception, as well as the processing and demodulation of the input signal in the telecommunication systems' networks, are closely related to the quality indicators in the functioning of one of the subsystems of these networks, namely a phase synchronization system. This work has directly considered the issues related to improving the performance and reducing the transitional component of the phase error generated by transition processes in the combined synchronization system. A mathematical model has been built that makes it possible to synthesize a disrupted link in the synchronization system of a telecommunication network meeting the condition for a decrease in the transitional component of the phase error. It is shown that a simple disrupted link, synthesized under the condition of suppressing a slow-fading transition component, makes it possible to shorten the time of the transition process in the system while maintaining the initial order of astatism. When a complex link is synthesized, the transition process becomes oscillatory. It was established that under the conditions of a phase jump or a frequency jump, it is possible to improve the dynamics of the system and reduce the transitional component of the phase error variance by making the parameters for the disrupted communication link influence the roots of the characteristic equation of the transition process. The features in synthesizing disrupted communication have been considered for the intervals of movement corresponding to areas with the positive and negative inclination of the phase discriminator's static characteristic. Such conditions have been devised that make it possible to determine the value and sign of the root in the characteristic equation of the transition process, which is introduced by the parameter of a disrupted communication link separately for areas of the stable and non-steady movement of the phase discriminator's static characteristic. The reported mathematical model of disrupted link synthesis has made it possible to derive reference results. They indicated that in order to suppress the slowly fading component of the phase error characteristic equation to "0", it is necessary to provide for a significant advantage, up to 10 times, of the roots introduced by the disrupted communication link over the roots of the specified component. By changing the value for a disrupted communication parameter, one can significantly, up to 5 times or larger, shorten the time of the transition process in the combined synchronization system at a simultaneous decrease of 18‒25 % in the initial value of the transition error

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“…It is known that optimizing the synchronization system to a minimum of phase error variance leads to a deterioration in its dynamics [3,5,7].…”

Section: Modeling the Process Of Forming A Transitional Component mentioning

confidence: 99%

Section: Synthesizing a Link In The Disrupted Communication Of Thementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The specified model of CSS includes an additional link with a transfer function ( ) W S which was used to implement the disrupted link and build an open control channel[3,5].…”

mentioning

confidence: 99%

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