41 / 411.通信原理词汇Uint1抽样量化和编码：sampling quantizing and coding话路：speech channel幅值：amplitude value抽样频率：sampling frequency抽样速率：sampling speed rate 脉冲流：stream of pulses重复率： repetition rate编码过程：coding processs模拟信号：analog signal传输质量transmission quality数字通信digital communication数字传输digital transmission含噪声的环境noisy environment传输路由transmission path信号比signal-to-noise ratio信号电平signal levels地面系统terrestrial system噪声功率noise power二进制传输binary transmission反向操作rever
