超高速实时光传操纵系统研究  

Research on Ultrahigh-speed Real-time Fly-by-Light System

作　　者：张益东[1] 杨一栋[1] 张树坤[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016

出　　处：《航空计算技术》2006年第5期1-4,8,共5页Aeronautical Computing Technique

基　　金：国防基础科研基金(K1603060319);"十五"国防预研基金(A0404-031)

摘　　要：为满足飞行控制及航空电子系统在抗电磁干扰、超高速数据交换等技术要求,本文综合星型及环形拓扑结构的优点,提出一种具有超高速实时光纤网络结构的飞行器光传操纵设计方案。所给出的余度设计及分布式共享内存策略增强了整个光传系统的可靠性及容错性能。应用动态数据分组技术既提高了小数据量的传输效率又提高了大数据量突发传输时的吞吐量。性能测试及地面飞行仿真验证表明,系统数据传输速率可达2.12Gbps,具有很强的实时性及信息传输确定性,适应了机载环境下光传飞行控制及航空电子系统不断发展的需求。A real-time Ultrahigh -speed optical fiber network design concept is proposed for fly-by-light aircrafts in this paper. The advantages of the star and ring topology structure are integrated. Redundancy design technology and distributed shared memory strategy is used to enhance the reliability and fault - tolerance capability of the whole system. The built - in dynamic data packet concept can not only increase the efficiency of little data transfers, but also increase the throughput of burst data transfers. Performance testing and ground flight simulation indicates that the system has excellent real - time and deterministic capability at rates up to 2.12Gbps ; it can meet the increasing requirements of fly - by- light and avionics systems.

关 键 词：光纤网络 机载局域网 光传操纵 飞行控制 反射内存 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]