基于高层体系结构的航天发射场电磁环境系统设计

Design of Aerospace Launch Spot Electromagnetism Environment System Based on High Level Architecture

航天发射场电磁环境较复杂,必须做好各电子设备的电磁兼容,才能确保航天发射任务圆满成功;为此,设计了一种基于高层体系结构的航天发射场电磁环境系统,对航天发射场的电磁环境进行测量、显示和评估;采用分层设计的思想,给出了系统的总体结构;按照发射场系统划分的方法,将仿真系统的联邦成员划分为8类,给出了各联邦成员的交互关系;整个系统的信息交互采用时间戳方式,在时间推进机制上采用基于时间步长的推进方式,给出了系统运行时间支撑环境RTI的时间管理算法;最后,将系统进行集成实现,并在卫星发射任务中进行检验;仿真时间从0s到400s,步长为1s,仿真结果表明该系统测量的电磁频谱的电平值与理论值基本吻合,误差小于0.01dB,完全满足发射场电磁频谱监测的需要。

Abstract： The electromagnetism environment of aerospace launch spot is complex, so the electromagnetism environment of all electronic devices must be Compatible, which insures the success of aerospace launch mission. So, an aerospace launch spot electromagnetism environ- ment system based on high level architecture is designed, the system can measure, display and evaluate the electromagnetism environment of aerospace launch spot. Adopting the thought of delamination design, the integrated structure of the system is put forward. According to the method of compartmentalizing system in aerospace launch spot, the federal member of the system is divided into 8 species, and the interactive relations of all federal members are put forward. The information exchange of the system adopts the method of time stamp, the mechanism of time advance adopts the method of time step, and the time management algorithm of RTI is put forward. Finally, the simulation system is in- tegrated and realized, and is verified in the mission of satellite launch. The simulation time is from 0 second to 400 second, the step time is 1 second, the result of simulation demonstrates that the voltage value of electromagnetism wave measured by the simulation system accords with the academic value, the measurement error is less than 0. 01 dB, which fully meets the demand of the measurement of electromagnet- ism wave in aerospace launch spot.