摘要
航天测控系统是一类强实时系统,实时性是系统设计和实现过程中必须考虑的主要因素。当前基于通用计算机的基带信号处理系统因其灵活性、易扩展性,已经逐步由原理验证阶段过渡到工程实现阶段,但系统由通用计算机搭建,因软硬件的异步特性,系统的实时性还不能很好地满足测控任务需求。研究了航天测控系统中的实时性,分析了不同类型航天测控任务对实时性的需求,提出了基于通用计算机的测控基带信号处理系统实现方案,并在平台上开展实验。仿真结果表明,基于通用计算机的航天测控基带信号处理系统可以满足实时性要求。
In aerospace TT&C system,real-time performance is of great importance and it is the main factor that must be consid- ered in system design and implementation process.Currently,the TT&C baseband signal processing systems based on general computer have already transitioned from the principle validation phase to the engineering implementation phase due to their flexibility and seal- ability.Howe,oct ,these systems are set up by general computers, and their real-time performance cannot meet the demand of aerospace TT&C task well due to the asynchronous features of the hardware and software.The real-time performance of aerospace TT&C systems is studied in this paper.The requirements of different types of aerospace TT&C tasks for real-tlme performance are analyzed.A baseband signal processing system based on general computer implementation scheme is proposed ,and experiments on platform are conducted.The simulation results show that space TT&C baseband signal processing system based on general computer can meet the real-time perform- ance requirements.
出处
《无线电工程》
2016年第7期34-37,共4页
Radio Engineering
基金
武器装备预研基金资助项目(9140A24070509KG02)
关键词
航天测控
基带信号
系统结构
实时性
aerospace TT&C
baseband signal
system structure
real-time performance