美利体育登录入口官网:ITU-R F.594-4-1997
在基群速率以下提供连接并且形成部分或全部综合业务数字网高段的无线中继系统假设参考数字通道的误码性能目标
Error Performance Objectives of the Hypothetical Reference Digital Path for Radio-Relay Systems Providing Connections at a Bit Rate Below the Primary Rate and Forming Part or All of the High Grade Portion of an Integrated Services Digital Network