A New Device for Two-Way Time-Frequency Real-Time Synchronization
Author:
Ke Zhang Ke Zhang,Ke Zhang Decai Zou,Decai Zou Pei Wang,Pei Wang Wenfang Jing
Abstract
<p>The netted wireless sensor nodes or coherent accumulation processing in multistatic radar imaging requires high accuracy time synchronization. Although GNSS timing can also be used as a time synchronization method to serve the applications above, its timing accuracy will be limited. In this context, we present the hardware implementation for Two-Way Time-Frequency Real-Time Synchronization (TWTFRTS) with an automatic adaptive jitter elimination algorithm based on Kalman and PID, which is implemented in a real-time, low-cost, portable Xilinx ZYNQ device. A short (2 km) baseline TWTFRTS experiment was done with a pair of devices composed of a master device and a slave device. The result shows a high precision of time synchronization performance with the standard deviation (1 σ) better than 1 ns.</p>
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Publisher
Angle Publishing Co., Ltd.
Subject
Computer Networks and Communications,Software