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[8-1、2、3讲义演示文稿[8-1、2、3讲义演示文稿[8-1、2、3讲义演示文稿
第八章 z变换、离散时间系统的z域分析
使用 z 变换工具的好处:
差分方程经 z 变换 — 代数方程
可以将时域卷积 — 变成频域(z)乘积
部分分式分解后将求解过程变为查表
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本章学习目标
(1)掌握z变换与z反变换。
(2)掌握离散系统的z域分析方法。
(3)掌握离散系统函数。
(4)熟悉z变换的主要性质。
(5)熟悉离散系统函数零、极点的概念。
(6)了解离散系统稳定性。
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z变换的定义
§1 z 变换的定义
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§2 典型序列的 z 变换
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Copyright 2004-2011 Aspose Pty Ltd.
Evaluation only.
Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.
Copyright 2004-2011 Aspose Pty Ltd.
Evaluation only.
Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.
Copyright 2004-2011 Aspose Pty Ltd.
Evaluation only.
Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.
Copyright 2004-2011 Aspose Pty Ltd.
Evaluation only.
Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.
Copyright 2004-2011 Aspose Pty Ltd.
Evaluation only.
Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.
Copyright 2004-2011 Aspose Pty Ltd.
Evaluation only.
Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.
Copyright 2004-2011 Aspose Pty Ltd.
Evaluation only.
Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.
Copyright 2004-2011 Aspose Pty Ltd.
附录五:常用离散序列的z变换对
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§3 z 变换的收敛域
一、收敛域的定义
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