Use MATLAB to obtain the Bode plots of
G(s) = \frac{s³}{s³ + 14.8s² + 38.1 s + 2554}
With the explanation previously given, we develop the MATLAB code as shown here.
% for example e.6
num=[1 0 0 0];
den = [1 14.8 38.1 2554];
w = logspace(-1 , 3);
bode(num, den, w);
title(‘Bode plot for a highpass filter’)
Running the program produces the Bode plots in Fig. E.13. It is evident from the magnitude plot that represents a highpass filter.