精华总结：Introduction of Matlab for signals and systems analysis

vidarson_qin

精华总结：Introduction of Matlab for signals and systems analysis

signals and systems using Matlab
Contents
1 Introduction 3
2 Getting Started 3
3 Getting Help from Within MATLAB 4
4 MATLAB Variables — Scalars, Vectors, and Matrices 4
4.1 Complex number operations . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.2 Generating vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.3 Accessing vector elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5 Matrix Operations 5
5.1 Arithmetic matrix operations . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.2 Relational operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.3 Flow control operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.4 Math functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 MATLAB Files 7
6.1 M-Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.1.1 Scripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.1.2 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.2 Mat-Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.3 Postscript Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.4 Diary Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Plotting 10
7.1 Simple plotting commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.2 Customization of plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8 Signals and Systems Commands 11
8.1 Polynomials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8.2 Laplace and Z Transforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.3 Frequency responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8.4 Fourier transforms and filtering . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 Examples of Usage 13
9.1 Find pole-zero diagram, bode diagram, step response from system function . 13
9.1.1 Simple solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9.1.2 Customized solution . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9.2 Locus of roots of a polynomial . . . . . . . . . . . . . . . . . . . . . . . . . . 16
9.3 Response of an LTI system to an input . . . . . . . . . . . . . . . . . . . . . 18
10 Acknowledgement 18

vidarson_qin

MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Department of Electrical Engineering
and Computer Science
Signals and Systems — 6.003
INTRODUCTION TO MATLAB — Fall 1999
Thomas F. Weiss

What's it?

This short essay for how to use Matlab in the analysis of signals and systems.
Especially good for beginners and advanced users who want to know how to use Matlab for signals and systems analysis in UNIX.
Greatly improve your efficience of using Matlab in UNIX. Also it will be a great benefit of Window users!
Enjoy guys!

liazhen

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