MATLAB在电气与计算机工程中的应用

MATLAB

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"MATLAB for Electrical and Computer Engineering Students and Professionals.pdf" 本书专为电气与计算机工程（ECE）的学生和专业人士设计，旨在结合MATLAB编程语言的教学，介绍和发展ECE的基础概念。书中特别强调MATLAB如何高效地解决实际ECE问题，使其区别于其他MATLAB相关书籍。它适合没有任何编程经验或电子工程背景的大一或大二ECE专业学生，也可作为初次接触MATLAB编程的课程教材。同时，对于需要学习MATLAB且希望通过实例学习的EE或CE专业人士来说，这本书也是一份有价值的参考资料。书中约有15%的内容逐步深入地介绍了ECE的基本原理，将这些基础知识贯穿于全书，使得MATLAB能够应用于解决相关的、具有实践意义的问题。作者精心挑选了大量的深度示例问题，让学生在使用MATLAB解决问题的同时，也能对基础概念有更深入的理解。 MATLAB软件的配合使用，如Simulink，进一步增强了本书的实用性，让学生和专业人士能够模拟和分析复杂的工程系统。Simulink是一个图形化建模工具，常用于系统仿真、动态系统设计和实时测试。通过本书，读者将学习到： 1. MATLAB基础：包括语法、数据类型、函数、控制流结构等，以及如何编写和调试MATLAB程序。 2. 数学计算：如何利用MATLAB进行数值计算、符号计算、矩阵运算和线性代数问题求解。 3. 图形绘制：掌握MATLAB的绘图功能，包括2D和3D图形，以及数据可视化。 4. ECE基础知识：如电路理论、信号与系统、数字信号处理等，通过MATLAB应用加深理解。 5. Simulink入门：学习如何建立模型、进行仿真和数据分析，适用于控制系统、通信系统和电力系统等领域的建模。 6. 实际问题解决：书中包含的丰富实例涵盖了各种ECE应用，帮助读者将理论知识应用于实际问题。这本书提供了一个理想的平台，让ECE初学者和专业人士能够同时掌握MATLAB编程和ECE核心概念，提升他们的工程实践能力。

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spectral analysis of both stationary and non-stationary signals. Chapter 12 continues by

presenting, from basic principles, time domain solution methods of linear differential

equations and linear difference equations. Many MATLAB functions are introduced and

applied to continuous and discrete time linear system analysis, including finding the impulse

response, transfer function, eigenvalues (natural frequencies), frequency response, con-

volution, and conversion to state variable descriptions. MATLAB also includes several

ordinary differential equation (ODE) solvers, which are applied to analyze both linear and

nonlinear circuits. Over 25 examples and 20 programs are included to demonstrate the

significant role that MATLAB can play in the academic carriers of ECE students. Some

examples are concerned with FIR (finite impulse response) and IIR (infinite impulse

response) digital filters to demonstrate that a difference equation, which is implemented

with a computer, can exhibit frequency selective behavior like an analog circuit.

Chapter 13 is an introduction to Simulink



. Simulink uses a graphical user interface

(GUI) for building models of dynamic systems with building blocks from an extensive

library of building blocks included in Simulink. The chapter starts by examining the

Simulink environment, model editor, and how to navigate among the libraries of building

blocks. Then, model building is demonstrated by drag and drop of blocks and inter-

connecting them. It is shown how one can build their own library of custom blocks and use

them in the same way as built-in blocks. Simulink is used to simulate an RLC circuit, and it

is used to compare the performance of an open-loop system to a closed-loop control system.

Appendix A describes how to generate hardcopy of MATLAB work.

Chapter Exercises

Each chapter includes numerous end-of-chapter problems to exercise the reader’s under-

standing of the material. Most problems require writing MATLAB programs. Answers to

selected problems are given in Appendix C. By adopting instructor’s request, a solution

manual is available from the publisher.

How the Book Can be Adapted

The coverage of this book (Chapters 1–11) may be too extensive to be completed in a one

term course. Course lengths, student abilities, and instructor objectives vary from program

to program. An instructor can decide which sections of this book to require, while skipping,

if necessary, others or assigning them for self-study. I would offer the following suggestions

for trimming the coverage:

● All of Chapter 1 (MATLAB Environment) must be covered.

● In Chapter 2 (Programs and Functions), the section concerned with MATLAB functions

need only be used to introduce anonymous and primary functions and perhaps the built-

in function eval.

Preface xv

● In Chapter 3 (Matrices, Vectors, and Scalars), once MATLAB has been applied to

resistive circuit analysis, the remainder of this chapter, which presents the most math-

ematically challenging material in this book, can be skipped without loss of continuity.

● All of Chapter 4 (Program Flow Control) must be covered.

● Depending on interest, the material about quantization error in Chapter 5 (Binary Data)

can be skipped. It would be very practical to return to Chapter 5 later, if time permits.

● All of Chapter 6 (Complex Numbers) should be covered.

● The material in Chapter 7 (Character Data) about structure and cell arrays can be

skipped.

● All of Chapter 8 (Input/Output) should be covered.

● All of Chapter 9 (Graphics) should be covered, at least because it is so much fun.

● All of Chapter 10 (Debugging), which is very short, must be covered, perhaps on a self-

study basis.

● Chapter 11 (Symbolic Computing) is very interesting, and should be covered if time

permits.

Once the assigned material is covered, it is likely that skipped material will be inves-

tigated by students on their own, because they will have come to appreciate the convenience

and utility of MATLAB for practical problem solving in the entire EE and CE curricula.

Final Notes

There is much literature available about MATLAB. A primary source of material about

MATLAB is MathWorks, Inc., the manufacturer of MATLAB. At their website one can find

many audio/video tutorials that will help to learn MATLAB. Anyone can also download a

30 day free trial of MATLAB, and a student version of MATLAB that includes many

toolboxes, and Simulink can be purchased for less than the average cost of a textbook.

I began to use MATLAB a long time ago, mainly because of its graphic capabilities,

ease with which it works with matrix and complex data types and the intuitive syntax of the

language. Over the years and now, MATLAB has evolved continuously. As new algorithms

are invented in virtually all fields of science and engineering, MATLAB grows to imple-

ment these algorithms with new built-in functions. Learning to use MATLAB is a worth-

while investment of time, whether you do it with this book or any other way. However, in all

cases, access to MATLAB and learning by trial and error are absolutely necessary.

Roland Priemer

Acknowledgments

After a long career of teaching and working in industry, it is virtually impossible to mention

the many colleagues and students who have influenced me. However, a long time ago, as an

undergraduate, I took a course taught by Prof L. C. Peach, whom I will never forget. He had

xvi Preface

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