Phase Difference Measurement with Matlab

version (1.92 KB) by Hristo Zhivomirov
Phase difference measurement between two signals via DFT.


Updated Thu, 01 Oct 2020 06:31:50 +0000

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The present code is a Matlab function that provides a measurement of the phase difference between two signals. The measurement is based on Discrete Fourier Transform (DFT) and Maximum Likelihood (ML) estimation of the signals’ initial phases. The method is highly noise resistive.

An example is 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] M. Sedlacek, M. Krumpholc. “Digital measurement of phase difference – a comparative study of DSP algorithms”. Metrology and Measurement Systems, Vol. XII, No. 4, pp. 427-448, 2005.

[2] M. Sedlacek. “Digital Measurement of Phase Difference of LF Signals A Comparison of DSP Algorithms”. Proceedings of XVII IMEKO World Congress, pp. 639-644, 2003.

Cite As

Hristo Zhivomirov (2022). Phase Difference Measurement with Matlab (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2017b
Compatible with any release
Platform Compatibility
Windows macOS Linux

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