Draw a bode and nyquist diagrams

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SUMMARY

This discussion focuses on generating Bode and Nyquist diagrams using MATLAB based on experimental data, specifically phase delay and voltage gain. The key commands for creating these plots are "semilogx" for the Bode plot and "plot" for the Nyquist plot, which utilizes magnitude and phase to derive complex coordinates. Users are guided to apply these commands effectively to visualize their results.

PREREQUISITES
  • Familiarity with MATLAB programming environment
  • Understanding of Bode and Nyquist plot concepts
  • Knowledge of phase delay and voltage gain data interpretation
  • Ability to manipulate complex numbers in MATLAB
NEXT STEPS
  • Research MATLAB's "semilogx" function for Bode plot creation
  • Explore the "plot" function for Nyquist diagram plotting
  • Learn about complex number manipulation in MATLAB
  • Study the theoretical background of Bode and Nyquist plots
USEFUL FOR

Engineers, researchers, and students involved in control systems, signal processing, or any field requiring the visualization of frequency response data using MATLAB.

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I have a task to draw a bode and nyquist diagrams from an expirmential results by using MATLAB, I have the phase delay and the votage gain data (10 results for each), can you help me how to darw bode and nyquist diagrams in MATLAB and which command I can use?



thanks
 
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I think you only need to use "semilogx" plot for drawing the bode plot. To draw the nyquist plot you could use the magnitude and phase to get the complex coordinates, then plot them as usual using "plot".
 

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