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Spectrum Scope

4.4

4.4 | 5 ratings Rate this file 27 Downloads (last 30 days) File Size: 6.73 KB File ID: #4539
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Spectrum Scope

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25 Feb 2004 (Updated )

Easily compute and display a real-time FFT.

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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

Strip Chart inspired this file.

This file inspired Sound Level Meter.

MATLAB release MATLAB 6.5 (R13)
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Comments and Ratings (7)
06 Sep 2012 gao

fast responses, but I'm doubting about the accuracy since there is half the data are lost.

31 Jul 2010 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

04 Jun 2008 Maryam Mohammadikish  
07 May 2008 venantius andika

good

05 May 2007 abdilah tlb

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

27 Jan 2007 Sherif Hany  
10 Feb 2006 amna Elhawil  
Updates
12 Jan 2010

Update copyright.

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