基于IEEE 1588的多基地声呐湿端时钟同步技术研究

Research on Clock Synchronization of Underwater Part of Multistatic Sonar Based on IEEE1588[JZ)][HS)]

摘要:

多基地声呐技术将会在未来发挥越来越重要的作用;而基于以太网的声呐湿端数据采集与传输系统在多基地声呐应用中对时间同步技术提出了更高的要求和挑战;文章提出了基于IEEE1588 v2标准的精确时间同步协议方案,并用支持IEEE1588的以太网交换机和PHY芯片实现了多基地声呐设备间的同步;测试结果表明,同步精度达到了亚微秒级别。

Abstract:

Multistatic sonar will play more and more important role in the future. The data acquisition and transmission system based on Ethernet in the underwater part of sonar which is applied in multistatic sonar put forward higher requirements and challenges for clock synchronization. A method of precision clock synchronization protocol based on IEEE1588 v2 is proposed. The synchronization between equipment of Multistatic sonar is implemented using Ethernet switch and PHY chips which support IEEE1588. The test results show that the synchronization precision can reach sub microsecond level.