基于GMR-1的卫星移动通信系统模拟信关站物理层软件的实现

Software design for physical layer of simulative gateway station of mobile satellite communication systems based on GMR-1

根据地球同步卫星移动通信接口标准GMR-1 Release 1,使用软件无线电构架设计了卫星移动通信系统模拟信关站物理层软件,用于测试和验证GMR-1 Release 1卫星移动通信终端的物理层协议一致性。该软件综合考虑了处理效率和系统灵活性,采取用Python脚本调用C函数的工作机制实现GMR-1 Release 1的各种逻辑信道的收发功能,以满足多种测试需求。环回自测和终端联测证实了所开发系统的功能正确性和测试有效性。

According to the GMR-1 Release 1, a standard for geostationary earth orbit mobile radio interface, a software system for the physical layer of the simulative gateway station of mobile satellite communications was designed by u- sing the frame of software radio to test and verify the consistence of the physical layer protocol of GMR-1 Release 1 based mobile satellite communication terminals. With the processing efficiency and flexibility considered, the soft- ware system adopts the mechanism of using the Python to transfer the C function to realize each GMR-1 Release-1 logic channel＇ s functions of receiving and delivering to meet varieties of needs. The tests show the system＇ s func-tional correctness and effectiveness.