总线型卫星电子系统T-时延离散PETRI网建模  

T-timed Discrete Petri Net Modeling of Bus-based Satellite Aviation System

作　　者：吴限德 孙兆伟[1] 张世杰[1] 

机构地区：[1]哈尔滨工业大学卫星技术研究所,哈尔滨150080

出　　处：《系统仿真学报》2009年第14期4528-4531,共4页Journal of System Simulation

基　　金："十一五"预研背景项目(113020102);教育部创新团队(IRT0520);国家自然科学基金(60704020)

摘　　要：小卫星综合电子系统是整个卫星的管理中心,能够完成参数采集,数据处理,信息提取和各种控制模式的实施等任务,综合电子系统设计方案直接决定小卫星的性能和可靠性等指标。给出小卫星基于总线的综合电子系统方案,针对以总线为核心的电子系统方案,建立了T-时延离散Petri网(TTDPN)模型,并对该模型进行了性能分析与评价,数学仿真结果表明,基于总线的电子系统方案能够有效满足系统实时性要求。The performance and reliability of satellite are determined by aviation system （AS） scheme, because AS is the management center of satellite and it performs the mission of parameters collecting, data dealing, information extraction and various control mode executing, etc. The bus-based micro-satellite aviation system scheme was proposed and the corresponding T- timed discrete PetriNet model was designed Then the performance analysis and evaluation was discussed The mathematical simulation results show that the bus-based aviation system is more suitable in or-board real time computation.

关 键 词：TTDPN 电子系统 小卫星 总线模型 

分 类 号：V411.8[航空宇航科学与技术—航空宇航推进理论与工程]