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| 內容簡介： |
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本书是工信部“十四五”规划教材，阐述了信号与系统的基本概念、核心原理和实用方法，主要包括连续时间与离散时间信号与系统的时域分析、频域分析、s 域分析、z 域分析、状态方程与 MIMO 系统等。本书在内容阐述上加强离散时间系统的分析，揭示连续时间与离散时间系统的相互关系以及数字滤波器的核心原理；在体系建构上注重与当今技术发展的适配性，增加了对卡尔曼滤波、扩展卡尔曼滤波，以及人工神经网络、深度学习等技术领域的基本概念和核心原理的介绍。此外，本书给出了 Matlab 实践内容和程序示例，可作为与课程配套的实践教学课程内容。本书可作为通信工程、电子信息工程、电子信息科学与技术等电子信息类专业的本科生教材。提供了多学时配置方案，可满足不同专业的不同需求，也可供研究生和有关科技工作者参考。
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| 關於作者： |
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丁志中，合肥工业大学教授，硕士生导师。合肥工业大学计算机与信息学院通信工程系系主任、通信与信息系统研究所所长、IEEE会员及IEEE通信学会会员。安徽省人防、民防信息化建设技术专家。发表论文40余篇，出版教材2部。
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| 目錄：
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目 录
第 1 章 信号与系统导论 ···················································································.1
1.1 信号的概念 ···························································································.1
1.1.1 信号的定义和描述 ·················································································.1
1.1.2 信号的分类 ·························································································.2
1.1.3 信号的运算和独立变量变换 ·······································································.6
1.2 基本信号 ·····························································································.10
1.2.1 正弦信号 ···························································································.10
1.2.2 指数信号 ···························································································.12
1.2.3 单位阶跃信号 ·····················································································.14
1.2.4 单位冲激信号 ·····················································································.16
1.2.5 抽样函数 ···························································································.23
1.3 系统 ···································································································.24
1.3.1 系统的基本概念 ···················································································.24
1.3.2 系统特性及 LTI 系统 ··············································································.27
1.3.3 SISO 系统的时域描述 ·············································································.33
1.4 信号与系统的基本问题和基本内容 ····························································.34
*1.5 Matlab 实践入门 ··················································································.35
1.5.1 Matlab 中信号的表示 ··············································································.35
1.5.2 输出图形的修饰 ···················································································.41
1.5.3 应用举例 ···························································································.43
习题 ··········································································································.45
第 2 章 信号与系统的时域分析 ·········································································.50
2.1 离散时间 LTI 系统的零状态响应：卷积和 ···················································.50
2.1.1 LTI 系统响应求解的基本思想 ····································································.50
2.1.2 零状态响应的卷积和求解 ·········································································.50
2.1.3 卷积和的计算 ·····················································································.52
2.1.4 卷积和的性质 ·····················································································.57
2.2 连续时间 LTI 系统的零状态响应：卷积积分 ················································.60
2.2.1 零状态响应的卷积积分求解 ······································································.60
2.2.2 卷积积分的计算 ···················································································.61
2.2.3 卷积积分的性质 ···················································································.64
2.3 系统冲激响应的性质 ··············································································.66
2.3.1 系统特性与冲激响应 ··············································································.66
2.3.2 理想系统的冲激响应 ··············································································.67
信号与系统 X
2.3.3 互联系统的冲激响应 ··············································································.67
*2.4 系统的方框图表示 ···············································································.69
2.4.1 微分方程描述系统的方框图表示 ·································································.69
2.4.2 差分方程描述系统的方框图表示 ·································································.72
*2.5 相关分析 ···························································································.74
2.5.1 连续时间信号相关函数 ···········································································.74
2.5.2 离散时间信号相关函数 ···········································································.81
*2.6 正交分析 ··················································
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