544
Practical MATLAB
® Applications for Engineers
0
5
10
15
20
25
30
35
40
45
50
−1
0
1
2
[System impulse response h(n)] versus n, using impz
Amplitude
time index n
0
5
10
15
20
25
30
35
40
45
50
−0.5
0
0.5
1
[System output g(n)] versus n, using convolution
Amplitude
time index n
FIGURE 5.57
Plots of system impulse h(n) and system output g c (n) of Example 5.13.
0
5
10
15
20
25
30
35
40
45
50
0
0.2
0.4
0.6
[System input sequence f(n)] versus n
time index n
Magnitude
0
5
10
15
20
25
30
35
40
45
50
−0.5
−0.2
0
0.5
1
1.5
[System output sequence g(n)] versus n, using filter
time index n
Magnitude
FIGURE 5.56
Plots of the system input f(n) and system output g f (n) of Example 5.13.
CRC_47760_CH005.indd 544
CRC_47760_CH005.indd 544
7/23/2008 1:47:40 PM
7/23/2008 1:47:40 PM