7月 25, 2010

Spectral efficiency

資料來源:Wikipedia - Spectral efficiency

Spectral efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. The link spectral efficiency of a digital communication system is measured in bit/s/Hz.

一個數位通信系統,在給定的頻寬限制下,可以傳送資料量就稱為頻譜效率,使用單位是 bit/s/Hz。舉例來說:
如果在「頻寬 1 kHz」環境下,毎秒能傳送「1 kbits」的資料,則其頻譜效率「1 bit/s/Hz」。

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