Analog and Digital Filters 619
FIGURE 6.45
Input and output plots of the LPF of Example 6.4.
5
5
0
frequency1000 Hertz
Amplitude
0 0.2 0.4 0.6 0.8
time in sec
1 1.2 1.4 1.6 1.8 2
(^1) Output LPF versus t
0
Output Amplitude
1
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
10
Input signal versus t
Input Amplitude
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
10
10 −^3
10 −^3
10 −^3
FIGURE 6.46
Input and output plots of the HPF of Example 6.4.
10
10
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
10 ^4
10 ^4
10 ^3
time in sec
Amplitude
frequency35 K Hrz
10
Input signal versus t
10
0
Input Amplitude
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Output Amplitude^1
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
1
0
0
output HPF versus t