PRACTICAL MATLAB® FOR ENGINEERS PRACTICAL MATLAB

536 Practical MATLAB® Applications for Engineers

1

0.5

0

0 5 10 15

Stair plot of f1(n) versus n

20 25 30

Amplitude−0.5

− 1

1

0.5

0

0 5 10 15

time index n

Stair plot of f2(n) versus n

20 25 30

Amplitude−0.5

− 1

FIGURE 5.47
Plots of f 1 (n) and f 2 (n) of Example 5.11.

20

0

− 20

(^010203040506070)
20
0
− 20
0 10 20 30 40 50 60 70
20
0
− 20
0 10 20 30 40 50 60 70
time index n
time index n
time index n
Amplitude
Amplitude
Amplitude
Convolution and correlation plots
[xcross(f1(n), f2(n))] versus n
[conv(f1(n), f2(-n))] versus n
[conv((f1(-n), f2(n))] versus n
FIGURE 5.48
Convolution and correlation plots of part b of Example 5.11.
See Figures 5.47 through 5.51.