Aerospace & Defense (A&D) sector is adopting Ethernet as the standard fieldbus and data backbone. This offers interoperability among different subsystem vendors, low-latency, high-bandwidth and a robust way to distribute accurate timing synchronization.
The need for accurate synchronization in Military Systems
However, the concurrence of different subsystems like in the modern military ships demands smart solutions to support dynamically different timing sources like GNSS or precision oscillators and to bridge between time distribution
protocols like NTP and PTP.
In addition, the complexity of the next generation Ethernet network may require distributing the time and synchronization over high-availability (HSR/PRP), Deterministic (TSN), multi-rate (1/10G) and multi-media (copper/fiber) Ethernet.
Relieving the Complexity of Multi-source Timing in Modern Military Ship
In this paper, a general architecture able to deal with multi-source and multi-protocol timing distribution is proposed. It implements the proposed architecture for timing distribution and bridging combined with secure Layer-3 and Layer-2 switch supporting HSR/PRP or TSN protocols among others.