眼图综述报告

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李洋

目录

1.

眼图的形成

.

..................................................................................................................................... 2

1.1

传统的眼图生成方法

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2

1.2

实时眼图生成方法

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3

1.3

两种方法比较

.

..................................................................................................................

4

2.

眼图的结构与参数介绍

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2.1

眼图的结构图

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4

2.2

眼图的主要参数

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5

2.2.1

消光比

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5

2.2.2

交叉点

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5

2.2.3 Q

因子

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6

2.2.4

信号的上升时间、下降时间

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6

2.2.5

峰—峰值抖动和均方根值抖动

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6

2.2.6

信噪比

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6

3.

眼图与系统性能的关系

.

................................................................................................................ 7

4.

眼图与

BER

的关系

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4.

如何获得张开的眼图

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5.

阻抗匹配的相关知识

..................................................................................................................... 9

5.1

串联终端匹配

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9

5.2

并联终端匹配

.........................................................................................................................10

6.

眼图常见问题分析

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10

7.

总结

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17