本書以MWORKS2023b為平臺，以MWORKS.Syslab與MWORKS.Sysplore通信系統(tǒng)建模與仿真工程案例為背景，通過專業(yè)技術與大量實例相結(jié)合的形式，加深讀者對通信系統(tǒng)原理的理解。本書共7章，內(nèi)容包括：緒論、MWORKS科學計算與系統(tǒng)建模仿真基礎、通信系統(tǒng)的信源編碼、通信系統(tǒng)的信道編碼、數(shù)字信號基帶傳輸、通信系統(tǒng)的載波調(diào)制、通信系統(tǒng)的應用開發(fā)實踐案例。每章正文之前有內(nèi)容提要，每章后附有本章小結(jié)和習題，以滿足教學和自學的需要。

李偉，院長助理（分管學院人才引育和國際化），預聘教授，博導，國家級人才項目入選者（2021年），黑龍江省B類高層次人才（2022年）。黑龍江省新一代網(wǎng)絡技術與信息保障實驗室副主任，IEEE/ACM Member，CCF高級會員，CCF信息系統(tǒng)/數(shù)據(jù)庫/人機交互專委執(zhí)行委員，CCF智慧交通分會執(zhí)行委員。2021年回國加入哈爾濱工程大學計算機科學與技術學院。李博士主要研究數(shù)據(jù)庫、圖數(shù)據(jù)管理與挖掘、時空數(shù)據(jù)挖掘、基于位置的服務計算等。近年來，李博士在上述相關領域發(fā)表論文40余篇，主持/參與澳大利亞聯(lián)邦政府CRC項目、國家重點科技攻關計劃、國家自然科學基金項目、黑龍江省自然基金、科技部外事專家項目等。擔任哈工程未來學院和聯(lián)合學院計算機類課程群負責人，獲得省教學成果二等獎。擔任國際期刊JIHMSP副主編，期刊Applied Sciences客座編輯，擔任知名國際會議SMC、DASFAA等的PC Member，國際期刊TKDE、TKDD、TBD、DSEJ等的特邀審稿人，國際會議ICDE、VLDB、DASFAA等的特邀審稿人。

第 1 章 緒論······································································································.1
1.1 通信的基本概念 ············································································.2
1.1.1 通信的發(fā)展 ·········································································.2
1.1.2 消息、信息與信號 ·································································.3
1.2 通信系統(tǒng) ·····················································································.4
1.3 通信系統(tǒng)模型 ···············································································.4
1.3.1 通信系統(tǒng)模型的組成 ······························································.5
1.3.2 模擬通信系統(tǒng)模型 ·································································.6
1.3.3 數(shù)字通信系統(tǒng)模型 ·································································.7
1.4 通信系統(tǒng)類型 ···············································································.8
1.4.1 分類方式 ············································································.8
1.4.2 光纖通信系統(tǒng) ····································································.10
1.4.3 衛(wèi)星通信系統(tǒng) ····································································.11
1.4.4 微波通信系統(tǒng) ····································································.11
1.4.5 數(shù)據(jù)通信系統(tǒng) ····································································.12
1.4.6 多路通信系統(tǒng) ····································································.12
1.5 通信方式 ···················································································.13
1.5.1 按照系統(tǒng)結(jié)構分類 ·······························································.13
1.5.2 按照信息傳輸方向與時間分類 ················································.13
1.5.3 按照數(shù)據(jù)信號序列傳輸?shù)臅r序分類 ··········································.13
1.5.4 按照通信網(wǎng)絡的形式分類 ······················································.14
1.6 通信系統(tǒng)的性能評價指標·······························································.14
1.6.1 有效性 ·············································································.14
1.6.2 可靠性 ·············································································.15
1.7 通信系統(tǒng)仿真 ·············································································.15
1.7.1 通信系統(tǒng)仿真的概念和意義 ···················································.15
1.7.2 通信系統(tǒng)仿真的一般流程 ······················································.16
本章小結(jié) ·························································································.19
習題 1 ·····························································································.20
第 2 章 MWORKS 科學計算與系統(tǒng)建模仿真基礎 ··············································.21
2.1 MWORKS 概述 ···········································································.22
2.1.1 MWORKS 產(chǎn)品家族 ·····························································.22
2.1.2 MWORKS 的發(fā)展及特點 ·······················································.23
2.2 科學計算與 Julia 語言 ···································································.24
2.2.1 變量與常量 ······························································.24
2.2.2 矩陣運算 ··········································································.25
2.2.3 程序流程控制 ····································································.30
2.2.4 腳本文件 ··········································································.32
2.2.5 圖形繪制 ··········································································.33
2.3 MWORKS.Sysplorer 建模仿真 ·························································.41
2.3.1 Modelica 語言 ····································································.41
2.3.2 MWORKS.Sysplorer 功能與特征 ··············································.42
2.3.3 MWORKS.Sysplorer 建模仿真的操作過程 ································.50
2.3.4 MWORKS.Sysplorer 在通信仿真中的應用 ··································.55
本章小結(jié) ·························································································.55
習題 2 ·····························································································.55
第 3 章 通信系統(tǒng)的信源編碼 ············································································.56
3.1 信源編譯碼 ················································································.57
3.1.1 信源編碼 ··········································································.57
3.1.2 信源譯碼 ··········································································.65
3.2 模擬信號的采樣 ··········································································.69
3.2.1 低通采樣定理 ····································································.69
3.2.2 帶通采樣定理 ····································································.73
3.3 采樣信號的量化 ··········································································.73
3.3.1 標量量化 ··········································································.74
3.3.2 均勻量化 ··········································································.75
3.3.3 非均勻量化 ·······································································.76
3.4 脈沖編碼調(diào)制 ·············································································.77
3.5 差分脈沖編碼調(diào)制 ·······································································.81
3.6 數(shù)字壓縮編碼 ·············································································.82
3.7 圖像壓縮編碼 ·············································································.86
3.7.1 靜止圖像壓縮編碼 ·······························································.86
3.7.2 動態(tài)圖像壓縮編碼 ·······························································.88
本章小結(jié) ·························································································.89
習題 3 ·····························································································.90
第 4 章 通信系統(tǒng)的信道編碼 ·············································································.91
4.1 信號系統(tǒng) ···················································································.92
4.1.1 傅里葉變換 ·······································································.92
4.1.2 隨機過程 ·········································································.102
4.1.3 高斯隨機過程 ···································································.106
4.1.4 信號加噪 ·········································································.107
4.2 信道 ·······················································································.115
4.2.1 前置知識 ·········································································.115
4.2.2 信號與信道 ······································································.119
4.2.3 信道的噪聲 ······································································.130
4.3 信道編譯碼技術 ·········································································.132
4.3.1 信道編譯碼技術概述 ···························································.132
4.3.2 差錯控制編碼 ···································································.134
4.3.3 線性分組碼 ······································································.135
4.3.4 漢明碼 ············································································.138
4.3.5 循環(huán)碼 ············································································.139
4.3.6 卷積碼 ············································································.142
4.3.7 Turbo 碼 ··········································································.145
4.3.8 LDPC 碼 ··········································································.148
本章小結(jié) ························································································.151
習題 4 ····························································································.151
第 5 章 數(shù)字信號基帶傳輸 ·············································································.151
5.1 概述 ·······················································································.152
5.1.1 信號 ···············································································.152
5.1.2 數(shù)字基帶信號 ···································································.153
5.1.3 數(shù)字基帶傳輸系統(tǒng)的構成 ·····················································.153
5.2 數(shù)字基帶信號的碼型 ···································································.156
5.2.1 常用碼型 ·········································································.156
5.2.2 碼型的功率譜分布 ······························································.167
5.3 數(shù)字基帶信號傳輸與碼間串擾 ························································.169
5.3.1 數(shù)字基帶信號傳輸?shù)亩�量分�?···············································.169
5.3.2 無碼間串擾的基帶傳輸 ························································.171
本章小結(jié) ························································································.173
習題 5 ····························································································.173
第 6 章 通信系統(tǒng)的載波調(diào)制 ··········································································.175
6.1 模擬調(diào)制 ··················································································.176
6.1.1 幅度調(diào)制 ·········································································.177
6.1.2 頻率調(diào)制 ·········································································.180
6.1.3 雙邊帶調(diào)制 ······································································.184
6.2 數(shù)字調(diào)制 ··················································································.187
6.2.1 振幅鍵控 ·········································································.188
6.2.2 頻移鍵控 ·········································································.192
6.2.3 相移鍵控 ·········································································.197
6.2.4 差分相移鍵控 ···································································.201
6.3 正交頻分復用 ············································································.205
6.3.1 正交頻分復用的基本原理 ·····················································.205
6.3.2 正交頻分復用的實現(xiàn) ···························································.206
本章小結(jié) ························································································.211
習題 6 ····························································································.211
第 7 章 通信系統(tǒng)的應用開發(fā)實踐案例 ····························································.213
7.1 通信系統(tǒng)的設計與實現(xiàn)概述 ···························································.214
7.1.1 通信系統(tǒng)的發(fā)射機設計 ························································.214
7.1.2 通信系統(tǒng)的接收機設計 ························································.222
7.1.3 通信系統(tǒng)的 MWORKS 實現(xiàn) ··················································.224
7.2 MIMO-OFDM 通信系統(tǒng)設計與實現(xiàn) ·················································.232
7.2.1 MIMO 系統(tǒng)的原理及模型 ·····················································.233
7.2.2 MIMO-OFDM 通信系統(tǒng) ·······················································.238
7.2.3 MIMO-OFDM 通信系統(tǒng)的 MWORKS 實現(xiàn) ·································.240
本章小結(jié) ························································································.251
習題 7 ····························································································.252