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This paper proposes a Delay Asymmetry Correction (DAC) Model to enhance clock synchronization protocols based on a Master-Slave arrangement such as the IEEE 1588 PTP protocol. The purpose of this work is to mitigate the effects of unpredictable packet delay variations (PDV), which may aggravate asymmetric link delays on timing packets, in order to improve the synchronization accuracy of the slave...
The synchronization is a key point in measurement and control systems, which use technologies such as network communication, local computing and distributed objects. Modern industrial application is demanding the synchronization for higher precision, this paper analyzes a variety of synchronous time synchronization protocols used in the current industrial Ethernet applications, mean-while explains...
NTP and IEEE1588 are two widely used protocols for clock synchronization in large distributed systems. NTP has its limitation that the synchronization accuracy is normally no better than 1 millisecond. The realization of the IEEE1588 system needs expensive components such as high-end microcontrollers or dedicated 1588 network hardware. This paper puts forward a method based on FPGA and short broadcast...
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