基于协议转换的卫星通信系统的应用

探讨解决互联网到国际移动卫星C系统的通信协议转换问题。采用的方法是通过互联网的Telnet协议来仿真PSDN网络的X.25协议,通过2种协议的转换来实现互联网和卫星C系统的信息交互,并保持了原有用户直接使用X.25连接的访问习惯和指令集。采用X.25协议的单进程模式并结合虚拟多条电路方式对应互联网的多个Socket链接,该方法使得系统支持并发用户访问,并且提高访问速度和通信的稳定性。

Internet Protocol Transition Mechanism on Inmarsat system

This paper discusses how to convert the communication protocols from Internet to Inm-C Satellite communication system. The approach is to simulate the X.25 protocol on PSDN network by the Internet Tclnet protocol. Through this protocol transition mechanism, we implement information exchange between Internet and Inm-C satellite system, and maintain original users＇ habits and command set. Using single-process and virtual circuits, X.25 protocol can approach to multiple Socket links. This method provides multi-users access at the same time, and increases access speed and communication stability.