数据链分布式仿真系统的设计与实现

Design and Realization of Distributed Tactical Data Link Simulation System

目前在数据链仿真中普遍采用各类网络仿真器进行集中式仿真,与实际网络脱离,缺乏数据可交互性和实时性。论文以JTIDS数据链为研究对象,在应用IEEE1588协议实现局域网内时钟同步的基础上,实现了固定时隙分配的TDMA协议仿真;通过查找SER表方法与JTIDS误码率数据进行交互,设计并实现了格式转换算法及误码仿真算法;最后在VC++开发环境下实现了分布式数据链仿真系统。对于分布式数据链仿真系统的设计和开发具有一定应用价值。

At present the various type of network simulator are widely adopted for concentrated Tactical Data Link （TDL） simulation which separated from the real network and led to the lack of data interactivity and instantaneity. In this paper, with JTIDS adopted as an research object, the TDMA protocol employing fixed time slot assignment was designed and realized based on the realization of local area network time synchronization adopted the algorithm of IEEE 1588 precise time protocol. Symbol error rate data are interacted with upper protocol layer through the method of symbol error rate table looking, the message format conversion method and error symbol simulated method were designed and realized. Finally, modules were integrated in Visual C＋＋ development environment, which leaded to the realization of distributed TDL simulation system in local area network. The simulating method has certain applied value for distributed TDL simulation.