摘要
提出为预测箭上整个通信网络的波形传输时间的延时,基于总线拓扑网络反射系数的计算方法,采用动态性能测试的算例进行验证。通过对新一代运载火箭1553B总线网络动态性能指标的测试,表明该方法理论计算的反射延时对上升、下降时间的影响与实测数据吻合。该研究可用于运载火箭1553B总线拓扑分析设计,具有指导意义。
Based on the reflection coefficient calculation method for 1553 Bbus topology network,the waveform reflection delay of launch vehicle communication network coas predicted in this paper,and a verify example was adopted on bus dynamic performance test.The test data of 1553 Bbus cable on launch vehicle showed that the calculated reflection delay influence to rise and fall time was identical with actual measured value.This research could be used for the topology design of 1553 Bbus.
出处
《上海航天》
2016年第B05期102-106,共5页
Aerospace Shanghai
关键词
总线拓扑
反射系数
动态性能
运载火箭
1553B总线
传输网络
反射
Bus topology
Reflection coefficient
Dynamic performance
Launch vehicle
1553 bus
Communication network
Reflection