释义 |
channel bandwidth 信道带宽 Besides transmission direction, a channel is characterized by bandwidth. Generally, greater bandwidth allows proportionately higher transmission ratesusually specified as the number of line signal elements per second, or baud rate. For binary-signal elements, the baud rate equals the bit rate. When a signal element represents more than two states, as in multilevel modulation, the bit rate exceeds the baud rate. 表示通道特性的一个指标(另一个为传输方向)。一般来说,带宽越宽,允许的传输率就越高。传输率通常是指每秒传送的线信号元数目,即波特率。 对于二进制信号,即位速率。当一个信号元素可以表示多于两个状态(如多级电平调制)时,位速率高于波特率。 |