Synchronization robustness using Kalman-based clock servos

Ring, Felix; Bigler, Thomas; Exel, Reinhard

doi:10.1109/ispcs.2015.7324685

Cited by 6 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Test item no.5 corresponds to the Kalman filtering algorithm proposed in Refs. [17‐19, 28] observed with the reference clock (

C_{R e f}^{1}

).…”

Section: Simulationmentioning

confidence: 99%

“…Clock synchronization is usually defined as a multivariable stochastic process using noise-containing measurement values to estimate clock states that cannot be directly observed due to random disturbances [16] . Ring et al simulated the applicability of the Kalman filter algorithm and the proportional-integral controller in the high-precision clock synchronization system in Ref.…”

Section: Related Workmentioning

confidence: 99%

“…simulated the applicability of the Kalman filter algorithm and the proportional‐integral controller in the high‐precision clock synchronization system in Ref. [17], and the results show that no noticeable difference in synchronization accuracy between the two algorithms. Giorgi and Narduzzi [ 18 ] established the state‐space model of the physical clock and obtained the real Kalman filter algorithm parameters through experimental measurement of the Allan variance of different types of clocks.…”

Section: Related Workmentioning

confidence: 99%

See 2 more Smart Citations

Research on Global Clock Synchronization Mechanism in Software‐Defined Control Architecture

Lyu

DAI²,

MA³

et al. 2022

Chinese J of Electronics

View full text Add to dashboard Cite

Adopt software‐definition technology to decouple the functional components of the industrial control system (ICS) in a service‐oriented and distributed form is an important way for the industrial Internet of things to integrate information technology, communication technology, and operation technology. Therefore, this paper presents the concept of software‐defined control architecture and describes the time consistency requirements under the paradigm shift of ICS architecture. By analyzing the physical clock and virtual clock mechanism models, the global clock synchronization space is logically divided into the physical and virtual clock synchronization domains, and a formal description of the global clock synchronization space is proposed. According to the fundamental analysis of the clock state model, the physical clock linear filtering synchronization model is derived, and a distributed observation fusion filtering model is constructed by considering the two observation modes of the virtual clock to realize the time synchronization of the global clock space by way of timestamp layer‐by‐layer transfer and fusion estimation. Finally, the simulation results show that the proposed model can significantly improve the accuracy and stability of clock synchronization.

show abstract

“…Test item no.5 corresponds to the Kalman filtering algorithm proposed in Refs. [17‐19, 28] observed with the reference clock (