摘要
卫星通信地面站的有线信号远端传输,无论同轴电缆还是光纤方式,通常使用E系列标准接口。基于G.704的数字接口转换器可实现基带同步串行数据信号与E1接口信号的互相转换。在简要介绍硬件设计和软件设计基础上,详细阐述了串行接口速率自适应、E1帧时隙选择、收发时钟的产生和先进先出存储器的设计思路,给出了性能测试结果。
Remote transmission of ground station signals of satellite communication, whether in coaxial line or in fiber, usually adopts E series standards. The digital interface conversion based on G. 704 implements conversion between base band synchronization serial digital signal and E1 signal. The hardware scheme and the software design of the digital interface conversion are briefly introduced. The paper particularly describes the issues of serial interface rate adaptation, slot selection for E1 frame and generation of receiving and transmitting clock as well as the issues of first - in first - out memory. Lastly the paper analyzes the performance test result.
出处
《无线电工程》
2011年第12期59-60,64,共3页
Radio Engineering
