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Spectral Analysis with Matlab Implementation

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11 Jun 2013 (Updated )

Spectral analysis including amplitude and phase spectrum as well as their graphical representation.

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Description

The present code is a Matlab function that provides:
1) Calculation of:
- One-sided amplitude spectrum;
- One-sided phase spectrum;
- Vector of frequencies.
2) The function can plot:
- One-sided amplitude spectrum;
- One-sided phase spectrum.
Two examples are given in order to clarify the usage of the function. The input and output arguments are given in the beginning of the code.

The code is based on the theory described in:

[1] N. Majumdar, S. Banerjee. MATLAB Graphics and Data Visualization, Birmingham, Packt Publishing, 2012.

[2] D. Manolakis, V. Ingle. Applied Digital Signal Processing. Cambridge, Cambridge University Press, 2011.

[3] G. Heinzel, A. Rudiger, R. Schilling. Spectrum and spectral density estimation by the Discrete Fourier transform (DFT), including a comprehensive list of window functions and some new flat-top windows. Germany, Hannover, Max-Planck-Institut für Gravitationsphysik, 2002.

[4] http://www.math.ufl.edu/help/matlab/tec6.2.html

Acknowledgements

This file inspired Time Frequency Analysis Of Non Stationary Signals With Matlab Implementation.

Required Products Signal Processing Toolbox
MATLAB
MATLAB release MATLAB 7.11 (R2010b)
MATLAB Search Path
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Updates
12 Jun 2013

Change of the title of the submission.

29 Aug 2013

A semantic error has been corrected in the code.
 
 

06 Dec 2013

A new reference literature has been added.

05 Oct 2014

A new version of the code has been uploaded.

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