PRACTICAL MATLAB® FOR ENGINEERS PRACTICAL MATLAB

Analog and Digital Filters 615

FIGURE 6.39

Plots of H(w) of Example 6.3 with R = 1 and L = C = 1/2.

1.2 0

 50

 100

 150

1.1

0.8

0.9

Magnitude

Angle in degrees

0.6

0.7

0.4

0.5

0.3

0.2

01 2

frequency in rad/sec

34 012

frequency in rad/sec

Phase of H(w) versus w

[for L
C
1/2, R
1]

Magnitude of H(w) versus w

[for L
C
1/2, R
1]

34

1

FIGURE 6.40

Plots of H(w) using lp2lp of Example 6.3.

1.2 0

 50

 100

 150

1.1

0.8

0.9

Magnitude

Angle in degrees

0.6

0.7

0.4

0.5

0.3

0.2

01 2

frequency in rad /sec

34 012

frequency in rad /sec

Phase of H(w) versus w

[using |p2|p]

Magnitude of H(w) versus w

[using |p2|p]

34

1