目 錄 第1 章 緒論·················································································································································(1) 1.1 通信發(fā)展簡史·································································································································(1) 1.2 通信系統(tǒng)的基本模型·····················································································································(3) 1.3 通信系統(tǒng)的分類和數(shù)字通信系統(tǒng)··································································································(4) 1.4 信息量與香農(nóng)公式·························································································································(7) 1.5 數(shù)字通信系統(tǒng)的主要性能指標(biāo)······································································································(9) 習(xí)題·······················································································································································(10) 第2 章 隨機(jī)信號分析·····························································································································(12) 2.1 概率論基礎(chǔ)知識···························································································································(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 概率的幾何表示················································································································(14) 2.2 隨機(jī)變量與概率分布···················································································································(15) 2.2.1 隨機(jī)變量····························································································································(15) 2.2.2 概率分布函數(shù)與概率密度·································································································(15) 2.2.3 多維隨機(jī)變量和多維概率分布·························································································(17) 2.2.4 隨機(jī)變量的數(shù)字特征········································································································(18) 2.2.5 通信系統(tǒng)中常見的概率分布·····························································································(23) 2.3 隨機(jī)變量函數(shù)的概率密度···········································································································(27) 2.4 隨機(jī)過程······································································································································(28) 2.4.1 隨機(jī)過程的概念················································································································(28) 2.4.2 隨機(jī)過程的分布函數(shù)和概率密度·····················································································(29) 2.4.3 隨機(jī)過程的數(shù)字特征········································································································(30) 2.4.4 平穩(wěn)隨機(jī)過程····················································································································(32) 2.4.5 平穩(wěn)隨機(jī)過程的自相關(guān)函數(shù)及功率譜密度······································································(33) 2.4.6 各態(tài)歷經(jīng)性與時(shí)間平均值·································································································(35) 2.4.7 平穩(wěn)隨機(jī)過程通過線性系統(tǒng)·····························································································(36) 2.5 通信系統(tǒng)中的噪聲·······················································································································(38) 2.5.1 通信系統(tǒng)加性噪聲的分類··················································································