PRACTICAL MATLAB® FOR ENGINEERS PRACTICAL MATLAB

540 Practical MATLAB® Applications for Engineers

− 3

− 2

− 1

0

Phase

1

2

0

0.002

0.004

Magnitude

0.006

0.008

0.01

− 2 − 1

− 1 −0.8 −0.6 −0.4 −0.2 0 0.2

angle[DFT[f(n)]] versus w

abs[DFT[f(n)]] versus w

0.4 0.6 0.8 1

012 3

frequency w × 104

× 104

FIGURE 5.53
Plot of DFT[f(n)] of Example 5.12.

− 1

− 1000 − 800

0.8

0.6

0.4

Magnitude

0.2

0

− 600 − 400 − (^2000)
angle[FT[f(t)]] versus w
abs[FT[f(t)]] versus w
200 400 600 800 1000
− 2
− 1
0
Phase
1
2
−0.8 −0.6 −0.4 −0.2 0
frequency w^ ×^104
0.2 0.4 0.6 0.8 1
FIGURE 5.54
Plot of FT[f(t)] of Example 5.12.