Youpeng Zhang, Jianrong Cao, Li Lan. Delay Asymmetry Compensation Scheme of Railway Time Synchronization Network[J]. Laser & Optoelectronics Progress, 2021, 58(7): 0706003
- Laser & Optoelectronics Progress
- Vol. 58, Issue 7, 0706003 (2021)
Fig. 1. Simplified link model
Fig. 2. Clock synchronization model
Fig. 3. Simulation results of queuing delay
Fig. 4. Flow chart of ERTCQD compensation algorithm
Fig. 5. Network topology model of station bureau level
Fig. 6. Node model of servers and clients
Fig. 7. Queuing delay estimated by algorithm
Fig. 8. Clock offset before and after compensation
Fig. 9. Delay before and after compensation
Fig. 10. Delay difference before and after compensation
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Table 1. Time delay of single link clock
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Table 2. Algorithm performance
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Table 3. Meaning of statistics set in model
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Table 4. Deviation error
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