2019-04-25 18:24:51 +08:00
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<!-- GFM-TOC -->
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* [通信方式](#通信方式)
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* [带通调制](#带通调制)
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<!-- GFM-TOC -->
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# 通信方式
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根据信息在传输线上的传送方向，分为以下三种通信方式：
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- 单工通信：单向传输
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- 半双工通信：双向交替传输
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- 全双工通信：双向同时传输
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# 带通调制
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模拟信号是连续的信号，数字信号是离散的信号。带通调制把数字信号转换为模拟信号。
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2019-04-25 18:43:33 +08:00
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<div align="center"> <img src="pics/c34f4503-f62c-4043-9dc6-3e03288657df.jpg" width="500"/> </div><br>
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2019-04-25 18:24:51 +08:00
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2019-06-08 12:03:33 +08:00
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<div align="center"><img width="550px" src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/other/QQ截图20190608120206.png"></img></div>
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