摘要
Abstract
Common functional requirements of spacecraft avionics system are analyzed and a service and protocol architecture based on CCSDS standard and ECSS standard has been designed.The architecture consists of 4 layers,including application layer,application support layer,transfer layer,subnetwork layer.The service and protocol of each layer can be combined to implement system functions.The detailed description of the architecture is given,including selection process of the standard services and protocols,service and protocol architecture design,and key technical issues solved.Application of the architecture shows that the architecture can provide the technical support for spacecraft intelligentization and network service,benefit the standardization of onboard interface and protocols as well as the universal use of devices and software on board,and provide more flexible and powerful function.关键词
航天器综合电子系统/空间通信协议/器载通信协议/器载接口业务Key words
spacecraft avionics system/space communication protocol/onboard communication protocol/onboard interface service分类
航空航天
