微小卫星星地数据链路层通讯协议的研究和开发

卫星和地面之间的交流通过它们之间的数据通讯来实现。为了实现星地通讯,必须选定双方都要遵守的协议。考虑到星地通信的可靠性和效率,在选择通讯协议时需遵循实用且最简单的原则。参考CCSDS的相关建议和Ax．25协议,开发了一种星地链路层通信协议。纳星一号飞行试验的运行结果表明,该协议具有较高的数据传榆效率和良好的可靠性,可以满足微小卫星的实际通信要求。

The Research and Development of Data Link Communication between Ground Station and Micro Satellite

The communication between ground stations and satellites is realized by the data transmission between them.To implement the communication the protocol must be selected.With a view to the reliability and efficiency of the communication between them,the prin- ciple of enough and simplicity are complied with,in this paper,According to the Ax.25 protocol and CCSDS information,a data link layer protocol is developed.The result of the NS-1 Satellite assembly integration test and flying test indicates that this protocol is reliable and effi- cient,so it can meet the application.