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Time-Frequency Analysis of Signals with Matlab

version 5.0.0.0 (326 KB) by Hristo Zhivomirov
Time-frequency analysis of non-stationary signals in time, frequency and time-frequency domain.

74 Downloads

Updated 03 Dec 2018

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The present code is a Matlab program for Time-Frequency analysis of a given (non-stationary) signal. The results are:
1) graphical representation of the signal in the time domain;
2) graphical representation of the signal in the frequency domain (via FFT);
3) graphical representation of the signal in the time-frequency domain (via STFT).

The code is based on the theory described in:

[1] T. Dutoit, F. Marques. Applied Signal Processing: A MATLAB-Based Proof of Concept. New York, Springer, 2009.

[2] 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.

Cite As

Hristo Zhivomirov (2019). Time-Frequency Analysis of Signals with Matlab (https://www.mathworks.com/matlabcentral/fileexchange/45465-time-frequency-analysis-of-signals-with-matlab), MATLAB Central File Exchange. Retrieved .

Comments and Ratings (16)

@CUMT CHINA Good

CUMT CHINA

load gong.mat;
[p,f,t] = pspectrum(y,Fs,'spectrogram','TimeResolution',400/fs);instfreq(p,f,t)

CUMT CHINA

tuan tran

Hi Folks,
I am looking of a code to simulate guided waves propogation in a rod and rail and find features. Would you please help me to find such a thing. my email is: nagvendrakanoje@gmail.com

Itachi

HumorDoctor

Thank you for every good work you have done!

Joseph

sy z

Big dream

can you share your email id?

Michael Du

E. Cheynet

Updates

5.0.0.0

Change of the title of the submission.

4.0.0.0

A new version of the code has been uploaded.

3.0.0.0

A new version of the code has been uploaded.

2.0.0.0

A new version of the code has been uploaded.

MATLAB Release Compatibility
Created with R2014b
Compatible with any release
Platform Compatibility
Windows macOS Linux
Acknowledgements

Inspired: plotpsd