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
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−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 gc(n) of Example 5.13.
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0
0.2
0.4
0.6
[System input sequence f(n)] versus n
time index n
Magnitude
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−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 gf (n) of Example 5.13.