MATLAB: How to use the Signal Processing Toolbox to compute the spectrum of a signal in MATLAB

Question

I am not very familiar with frequency domain analysis, how do I use the Signal Processing Toolbox to compute the spectrum of a signal in MATLAB?

Answer 1

There are many types of analysis that can be performed on time-domain signals when transformed into the frequency-domain. The following link walks you through the basics of frequency-domain analysis:

https://www.mathworks.com/help/signal/examples/practical-introduction-to-frequency-domain-analysis.html

If you want to use a User Interface to perform many types of signal analysis (spectrum, spectogram, scalogram, extract regions of interest), you can use the Signal Analyzer App:

https://www.mathworks.com/help/signal/ug/using-signal-analyzer-app.html