@misc{10481/96331,
year = {2018},
month = {7},
url = {https://hdl.handle.net/10481/96331},
abstract = {Distributed data acquisition (DAQ) systems are in charge of converting different analog environment signals into digital values to perform control and monitor tasks. They require a computer network technology to share data between their different elements. One of their main issues is to match data with the specific events under study. A possible solution is to include an event synchronization technology such as Network Time Protocol (NTP), Precise Time Protocol (PTP), or White Rabbit (WR). This contribution proposes a high-performance distributed timing system based on the WR technology. We focus on the square kilometer array (SKA) project as an example of the distributed DAQ system. The SKA project has a strict timing requirements for its operation with a performance below 2 ns. This accuracy is not achievable by current standard synchronization technologies such as NTP or PTP. Under this context, the authors propose the WR zynq embedded node (WR-ZEN) platform as a candidate for the SKA's pulse per second (PPS) distribution system. It is a new design that integrates the WR technology, thus enabling the subnanosecond accuracy. Finally, the WR-ZEN has been evaluated in different scenarios to demonstrate its timing performance in dynamic environment conditions fulfilling the SKA telescope requirements for PPS distribution.},
organization = {Horizon 2020
ASTERICS under Grant 653477},
organization = {VITVIR, Junta de Andalucia
under Grant TIC-8120 and Grant 614 AYA2015-65973-C3-2-R AMIGA6},
publisher = {Institute of Electrical and Electronics Engineers (IEEE)},
keywords = {Gigabit Ethernet},
keywords = {Network},
keywords = {Optical fiber},
title = {A Fully Programmable White-Rabbit Node for the SKA Telescope PPS Distribution System},
doi = {10.1109/TIM.2018.2851658},
author = {Jiménez López, Miguel and Torres González, Felipe and Gutiérrez Rivas, José Luis and Rodríguez Álvarez, Manuel and Díaz Alonso, Antonio Javier},
}