TDM和FDM的区别

先决条件 – 频分和时分复用
时分复用 (TDM)：
TDM 是多路复用技术。 TDM 像模拟信号一样处理数字信号。在 TDM 中，同步脉冲很重要。 TDM 共享各种信号的时标。它有两种类型：

1. Synchronous TDM
2. Asynchronous TDM 

频分复用 (FDM)：
FDM 是用于模拟系统的复用技术。在 FDM 中，需要 Guard band，FDM 的频谱效率低。在 FDM 中，带宽 (B) 用于不同的源。

我们来看看TDM和FDM的区别：

S.NO	TDM	FDM
1.	TDM stands for Time division multiplexing.	FDM stands for Frequency division multiplexing.
2.	TDM works with digital signals as well as analog signals.	While FDM works with only analog signals.
3.	TDM has low conflict.	While it has high conflict.
4.	Wiring or chip of TDM is simple.	While it’s wiring or chip is complex rather than simple.
5.	TDM is efficient.	While it is inefficient.
6.	In TDM, time sharing takes place.	While in this, frequency sharing takes place.
7.	In TDM, synchronization pulse is necessary.	While in it Guard band is necessary.