Introduction to MATLAB/Simulink

1. MATLAB® Introduction
游懷祖
AOCS/ME Dept, NSPO
2006, March 02

2. 捕魚的方法
• Online help:
– http://www.mathworks.com
– Home  Support  Product Documentation 
“fishes” (HTML or PDF files)
• Offline help:
– F1 key  help
– Demos
• Help  Demos
• $MATLAB71/demos/*.swf (flash example movies)
– Books

3. Before Getting Started…
 MATLAB: core program.
 MATLAB Toolboxes: extended
program  M-files (or p-files).
 Simulink: GUI block diagram.
 Simulink Blocksets: extended
Simulink.
Tonight: only (1) (75%) & (3) (25%).

4. Outline
• MATLAB
– Mathematics
– Graphics
– Programming
• Simulink
– Graphic User Interface (GUI) block diagram
modeling

5. Integrated Design Environment

6. Mathematics
• Matrix-based representation

7. Mathematics Examples
Ex1: State transition matrix Ex2: eigenvalue &
singular value decomposition

8. Graphics
• Basic graphic commands:
• Specialized plots & animation (make AVI movies):
pie, histogram, contour plot, getframe, etc.
• Graphic handles: get, set commands; gcf, gca.
• Figure save, export, print, etc.

9. Graphic Examples
Ex1: signal plot Ex2: image conversion

10. Programming
• Data type (class):
number (double),
string (char), cell,
logic, handle, etc. Function handle Ex.
• Function handle:
using @ or inline
command
• Script vs. Function
• Array vs. For-loop

11. Programming Example (script)

12. Programming Example (function)

13. Simulink
• Choosing a solver: continuous/discrete
• Import/Export data
• Configuration sets/parameters
• Integrated with MATLAB
workspace, M-files, C/C++  S-
function
• Advanced level: Stateflow, Real-Time
Workshop, xPC Target

14. Simulink Example
Scope
w
y XY Graph
-C- J RotEOM y dot x
1
T xo s
MOI q
Euler Rotational Integrator y
q tip pos
Eq. of motion
-C- [w0,q0] z
body z-axis
Pulse tip trajectory
Terminator
Generator
[0 0 1]
b3
Matrix
DCM Multiply 1
1 q be
tip
q Product
q2c pos
Masked subsystem