This example demonstrates how to use the bodedm function in MATLAB to generate a Bode plot while displaying margins as data cursors. By using just the transfer function, the function allows for a convenient visualization of system behavior and stability. Example code:
clc;
clear;
close all;
T = 1;
k = 5 * 100 * 50;
z = [];
p = [0 -30 -50];
Gs = zpk(z,p,k);
bodedm(Gs);
grid;
In this code:
- Gs is the transfer function in zero-pole-gain form.
- The bodedm function automatically generates the Bode plot and shows the margins using data cursors for easy analysis.
- Grid is used to enhance the plot's readability.