340 Practical MATLAB® Applications for Engineers
Nyquist diagram Nyquist diagramNyquist plot without w1.50.5−0.5− 1−1.5− 1 −0.5 0 0.5 101Imaginary axis Imaginary axisReal axis1.50.5−0.5− 1−1.5− 1 −0.5 0 0.5 101Real axisNyquist plot with w
(w = −1:0 4:10)FIGURE 4.6
Nyquist plots of R.4.69.
Bode plots with w (w = −1:0.4:10)
Bode diagram
10− 10− 20− 30− 45
− 90
− 135
− 180
− 225
10 −^110000Frequency (rad/s)Magnitude (dB)Phase (degree)Bode diagram
20
0
− 20
− 40
− 60
− 80Magnitude (dB)Bode plots without wPhase (degree)0
− 45
− 90
− 135
− 180
− 225
10 −^1100101102
Frequency (rad/s)FIGURE 4.7
Bode plots of R.4.69.