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
