Plot Signals from the Command Line
You can plot signals in the Signal Analyzer app by calling the app in the command line.
Create a three-channel random signal sampled for 1 second at 1 kHz. Plot the signal in Signal Analyzer.
signalAnalyzer(randn(1000,3),'SampleRate',1e3)
Use Display Grid on the Display tab to open an empty display. Select the new display and click Spectrum. Create a two-channel sinusoidal signal sampled for 1 second at 100 Hz. The sinusoids have frequencies of 5 Hz and 7 Hz. Plot the signal in the new display.
signalAnalyzer(sin(2*pi*[5 7].*(0:100)'/100),'SampleRate',100)
Select the display with the three random signals. Remove the random signals from the display by clearing the check boxes next to their names. Click Time-Frequency. Create a quadratic chirp sampled for 5 seconds at 600 Hz. The chirp has an initial frequency of 60 Hz that increases to 240 Hz by the end of the measurement. Plot the chirp.
signalAnalyzer(chirp(0:1/600:5,60,5,240,'quadratic'),'SampleRate',600)
See Also
Apps
Functions
Related Examples
- Find Delay Between Correlated Signals
- Resolve Tones by Varying Window Leakage
- Analyze Signals with Inherent Time Information
- Spectrogram View of Dial Tone Signal
- Find Interference Using Persistence Spectrum
- Modulation and Demodulation Using Complex Envelope
- Find and Track Ridges Using Reassigned Spectrogram
- Scalogram of Hyperbolic Chirp
- Extract Voices from Music Signal
- Resample and Filter a Nonuniformly Sampled Signal
- Declip Saturated Signals Using Your Own Function
- Compute Envelope Spectrum of Vibration Signal
- Extract Regions of Interest from Whale Song
More About
- Using Signal Analyzer App
- Edit Sample Rate and Other Time Information
- Data Types Supported by Signal Analyzer
- Spectrum Computation in Signal Analyzer
- Persistence Spectrum in Signal Analyzer
- Spectrogram Computation in Signal Analyzer
- Scalogram Computation in Signal Analyzer
- Keyboard Shortcuts for Signal Analyzer
- Signal Analyzer Tips and Limitations