Noise-Shaping All-Digital Phase-Locked Loops

Brandonisio, Francesco; Kennedy, Michael Peter

doi:10.1007/978-3-319-03659-5

Cited by 10 publications

(3 citation statements)

References 9 publications

(20 reference statements)

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“…The coherence of circuits is provided by delay link (1 − 0 2 ⁄ ) ⋅ so that these signals coincide. Synchronization system accuracy is assessed by dispersion of GMSK, as in Figure 4, bit sequence reflecting the synchronization in the circuit [5][6][7][8][9][10][11][12][13].  should be filtered and furthermore is used for frequency control in pulse generator and integrators in order to remove a synchronization error.…”

Section: Methodsmentioning

confidence: 99%

“…Thus both phase locked loop (PLL), which recovers signal carrier frequency and clock synchronization devices (CSD) are needed to be included to the receiving part. Analysis of works [6][7][8] showed that the basic accent at the decision the task of synchronization charts construction is put on the usage of synchronization devices which are built on the PLL systems. This paper presents the recent problems of the analytical description of synchronization systems that form on the receiving side of radio-frequency line supporting jitter when included some noise that impairs the accepted signal, and also the description of the accident state of a signal.…”

Section: Introductionmentioning

confidence: 99%

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Signal processing with frequency and phase shift keying modulation in telecommunications

Boiko¹,

Tolubko²,

Барабаш³

et al. 2019

TELKOMNIKA

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In this paper represents research improving effectiveness of signal processing in telecommunication devices especially for its part, which relates to providing its noise resistance in conditions of noise and interference. This objective has been achieved through development of methods and means for optimization of filtering devices and semigraphical interpretation of clock synchronization systems in telecommunications with frequency shift keying on the base of stochastic models what determines relevance of the subject. Separately, in an article considered the urgent task is using of modified synchronization methods based on the interference influence of adjacent symbols on the phase criterion tract, in particular the use of the modified synchronization scheme, in order to get a formalized outlook representation of the synchronization schemas based on the polyphase structures with using a bank of filters, that allows to improve the characteristics of digital telecommunication channels. This work is devoted to the examination and modeling of these ways. The proposed ideas and results for the construction of synchronization systems can be used in modern means of telecommunication.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Signal processing with frequency and phase shift keying modulation in telecommunications

Boiko¹,

Tolubko²,

Барабаш³

et al. 2019

TELKOMNIKA

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show abstract

“…This raises the question of improving synchronization system especially in ASTESJ ISSN: 2415-6698 case of using in communication systems frequency, phase and quadrature methods of digital modulation [7]- [9]. Papers [4,5] represent linear and nonlinear analysis of clock synchronization devices. Probability of acquisition and probability of cycle slip are estimated.…”

Section: Introductionmentioning

confidence: 99%

Methodology for Assessing Synchronization Conditions in Telecommunication Devices

Boiko¹,

Pyatin²,

Eromenko³

et al. 2020

Adv. sci. technol. eng. syst. j.

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This paper represents analysis of principles providing maximally reliable delay estimation of signal synchronization devices in telecommunication. Clock synchronization schemes on the base of stochastic models, graph-analytic interpretation, analytical functional description and their parameters selection in case of real complex hindrance are analyzed. Dependences between dispersion of maximally reliable estimation of synchronization devices and signal to noise ratio (SNR) are represented. Analytical expressions and dependences are obtained for deviation of synchronization error with respect to SNR at the output of discriminator. Diagrams of state are formed for assessment of digital synchronization device in case of error state. 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. The functions performed by the symbolic synchronization circle, features of the construction of the timing error detector (TED) are analyzed. The Gardner, Early-Late, Mueller & Muller TED, their error and the S-curve equation are investigated. The dependence of the relative timing error on the SNR is obtained. The article examines the effects of interpolation and decimation conditions in the forming filters of digital communication systems.

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Study of the Influence of Changing Signal Propagation Conditions in the Communication Channel on Bit Error Rate

Boiko

Pyatin

Karpova

et al. 2021

Data-Centric Business and Applications

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Noise-Shaping All-Digital Phase-Locked Loops

Cited by 10 publications

References 9 publications

Signal processing with frequency and phase shift keying modulation in telecommunications

Signal processing with frequency and phase shift keying modulation in telecommunications

Methodology for Assessing Synchronization Conditions in Telecommunication Devices

Study of the Influence of Changing Signal Propagation Conditions in the Communication Channel on Bit Error Rate

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