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Noise Analysis with Matlab

version 1.0.0 (1.53 MB) by Hristo Zhivomirov
Time and frequency analysis, measurement of the noise statistics, etc.


Updated 19 Jun 2019

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The present code is a Matlab program for analysis of noise signals. The analysis includes:
1) Plotting of the:
- signal in the time domain;
- signal in the frequency domain (periodogram);
- signal in the time-frequency domain (spectrogram);
- amplitude probability distribution of the signal;
- autocorrelation function of the signal.
2) Displaying of the:
- minimum and maximum value of the signal;
- mean value (DC-value) and standard deviation (RMS-value);
- skewness (tailness) and kurtosis (peakedness);
- crest-factor CF;
- dynamic range DR;
- autocorrelation time;
- test results for stationarity of the signal.

The code is based on the theory described in:

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

[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). Noise Analysis with Matlab (, MATLAB Central File Exchange. Retrieved .

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