包邮现代通信原理(第三版)

目 录 第1 章 绪论·················································································································································(1) 1.1 通信发展简史·································································································································(1) 1.2 通信系统的基本模型·····················································································································(3) 1.3 通信系统的分类和数字通信系统··································································································(4) 1.4 信息量与香农公式·························································································································(7) 1.5 数字通信系统的主要性能指标······································································································(9) 习题·······················································································································································(10) 第2 章 随机信号分析·····························································································································(12) 2.1 概率论基础知识···························································································································(12) 2.1.1 事件及其概率····················································································································(12) 2.1.2 概率的基本定理················································································································(13) 2.1.3 概率的几何表示················································································································(14) 2.2 随机变量与概率分布···················································································································(15) 2.2.1 随机变量····························································································································(15) 2.2.2 概率分布函数与概率密度·································································································(15) 2.2.3 多维随机变量和多维概率分布·························································································(17) 2.2.4 随机变量的数字特征········································································································(18) 2.2.5 通信系统中常见的概率分布·····························································································(23) 2.3 随机变量函数的概率密度···········································································································(27) 2.4 随机过程······································································································································(28) 2.4.1 随机过程的概念················································································································(28) 2.4.2 随机过程的分布函数和概率密度·····················································································(29) 2.4.3 随机过程的数字特征········································································································(30) 2.4.4 平稳随机过程····················································································································(32) 2.4.5 平稳随机过程的自相关函数及功率谱密度······································································(33) 2.4.6 各态历经性与时间平均值·································································································(35) 2.4.7 平稳随机过程通过线性系统·····························································································(36) 2.5 通信系统中的噪声·······················································································································(38) 2.5.1 通信系统加性噪声的分类··················································································