目 录
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摘 要
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Abstract
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1 设计任务
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2 实验原理分析
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2.1 PCM 原理介绍
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2.1.1 抽样(Sampling)
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2.1.2 量化（quantizing）
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2.1.3 A 压缩律：
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2.1.4 编码（Coding）
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2.2 HDB3 编码及解码原理
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2.2.1 AMI 码编码基本原理
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2.2.2 HDB3 码编码基本原理
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2.2.3 HDB3 码的译码
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2.3 汉明码
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2.3.1 校验
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与其他的错误校验码类似，汉明码也利用了奇偶校验位的概念，通过在数据位后面增加一些比
特，可以验证数据的有效性。利用一个以上的校验位，汉明码不仅可以验证数据是否有效，还
能在数据出错的情况下指明错误位置。
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2.3.2 纠错
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2.3.3 校验方法
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2.3.4 构造原理
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2.4 PSK 数字调制
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2.4.1 数字调制技术
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2.4.2 二进制相移键控（2PSK）基本原理
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2.5 AWGN 信道原理
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3 实验方案设计及测试方法
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3.1 方案设计
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3.2 系统编码流程图
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3.3 PCM 编解码分析
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3.4 汉明码编解码分析
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3.5 HDB3 编解码分析
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3.6 PSK 调制解调编程分析
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3.7 AWGN 信道编码分析
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4 实验结果及分析
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4.1 信源模块
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4.1.1 抽样结果
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4.1.2 13 折线法量化结果
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4.1.3 PCM 编码结果
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4.2 HDB3 编码结果
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4.3 汉明码编码结果
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4.4 PSK 调制结果
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4.5 AWGN 信道仿真结果
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