基于卫星通信网的网关设计与实现

摘要

In order to achieve the interconnection between satellite communication and terrestrial network,an important solution is using gateway to accomplish the conversion of communication protocols. Firstly, a design of 3-layer-gateway based on physical layer, data link layer and network layer is proposed in this paper,and focus on solving the problem of protocol conversion between MAC frame and AOS transmission frame. Secondly,the gateway is a-chieved on the FPGA platform with finite state machine. Finally, through tests ,the feasibility of the gateway is verified%针对卫星通信网和地面网的互联问题,利用网关完成通信协议的转换是一种重要的解决途径.首先,基于物理层、数据链路层和网络层提出了三层网关的设计方案,重点解决了MAC帧和AOS传输帧之间的相互转换.其次,在FPGA平台上采用有限状态机完成了该网关的实现.最后,通过测试验证了网关的可行性.