机载SDR系统SCA核心框架优化技术

针对软件通信架构(Software Communication Architecture,SCA)核心框架在机载领域臃肿和低效等问题,提出了一种面向机载软件无线电(Software Defined Radio,SDR)系统的SCA核心框架优化方案.首先,为使架构轻量高效,提出功能单元裁剪方法;其次,针对时间优化问题,分析了SCA的局限性,提出可灵活配置的加载流程优化技术,在兼容SCA规范的基础上可根据实际系统特点实施灵活的组件加载,充分发挥系统的并行加载潜力来缩短加载时间.实验结果表明,所提的优化技术能够有效提升SDR系统可用性,对面向机载SDR系统的SCA架构优化设计和应用具有较强的指导意义.

Airborne SDR-oriented SCA core framework optimizing technology

For the problems such as overweighted structure and low efficiency when software communication architecture(SCA) core framework(CF) is applied in airborne domain,an airborne software defined radio(SDR)-oriented SCA CF optimizing solution is proposed.Firstly,to make the architecture light and efficient,the functional unit cutting method is elaborated.Secondly,for the time optimization problem,the limitations of the SCA specification are analyzed,and a loading process optimization technique which can be configured flexibly is proposed.The technique is compatible with the SCA specification,and at the same time it can implement flexible component loading according to the actual system design,which makes the parallel potential of the system be fully utilized to shorten the components loading time.Experiment results show that the optimization technology can improve the availability of SDR systems effectively,and has important guidance for the optimization design and application of the SCA architecture in the airborne SDR system.