NyquistVisualiser

Interactive Nyquist diagram with synchronised Bode plot.

Nyquist Visualiser

This app plots the Nyquist diagram alongside Bode magnitude and phase plots for a given transfer function.

Features:

• Frequency slider with play/pause
• Pole/zero editor — add or remove real or complex-conjugate roots; plot updates automatically
• Datatip labels for poles/zeroes

Usage:

Run

>> NyquistVisualiser

Input formats accepted:

(s+1)/(s^2+2*s+1)

(s+1)/(s^2+2*s+1) * exp(-0.01*s)

[1 1] / [1 2 1]

tf([1 1],[1 2 1])

Requirements:

MATLAB R2019b+, Control System Toolbox