Spectrum Scope

Easily compute and display a real-time FFT.

Description

Spectrum scope makes it easy to compute and display the fft of a live signal. You feed it your time series data, and it does the rest. It works very nicely with the Timer objects introduced in R13, and with Analoginput objects (from the Data Acquisition Toolbox).

Here's a simple example, assuming you've defined a sample rate (Fs), a desired FFT length (Nfft), and some data (s) that you'd like to view:

%% Initialize scope
spectrumscope(Fs,Nfft);

%% Update scope
spectrumscope(s);
 
I've included a few functioning examples to get you started.

I welcome your feedback.

Acknowledgements

The author wishes to acknowledge the following in the creation of this submission:
Strip Chart
This submission has inspired the following:
Sound Level Meter

• MATLAB release: MATLAB 6.5 (R13)

[amna Elhawil]

 

[Sherif Hany]

 

[abdilah tlb]

comment utilisé le spectrum scope dans simulink c'est-à-dire comment configurer le spectrum scope

[venantius andika]

good

[Maryam Mohammadikish]

 

[Bhavik Patel]

Hey guys how does this file work ? I have a file which is split in to two columns time with pressure I want to do the FFT on this within Matlab but im a little lost. Anyone guide me in the right direction please?

Kind Regards,
Bhavik