Research on Real-time Transmission Performance of SpaceWire Network

SpaceWire is a high-rate on-board bus standard designed specially for space application and the basic framework of current and future data-handling architecture.However,the research on the real-time transmission performance of SpaceWire network is still not enough,and this could hardly ensure the network to implement on-time delivery of critical messages.This paper proposes a method based on wormhole routing transmission model to calculate and analyze the real-time transmission performance of SpaceWire network.The analysis and simulation results could provide theoretical foundation and guidance for the design of SpaceWire network with high real-time transmission performance.