# 物理层的基本概念

![image-20201010213213489](计算机网络第二章习题课.assets/image-20201010213213489.png)

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![image-20201010213423319](计算机网络第二章习题课.assets/image-20201010213423319.png)



# 编码与调制习题

![image-20201008154232079](计算机网络第二章习题课.assets/image-20201008154232079.png)

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![image-20201010213815232](计算机网络第二章习题课.assets/image-20201010213815232.png)



# 信道的极限容量习题

![image-20201010205425612](计算机网络第二章习题课.assets/image-20201010205425612.png)

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![image-20201010205914234](计算机网络第二章习题课.assets/image-20201010205914234.png)

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![image-20201010210031254](计算机网络第二章习题课.assets/image-20201010210031254.png)

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![image-20201010210217898](计算机网络第二章习题课.assets/image-20201010210217898.png)

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![image-20201010210350902](计算机网络第二章习题课.assets/image-20201010210350902.png)