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I am looking for a implementation of Hilbert-Huang Transformation. Ideally, in Java, but any language with similar syntax would prove useful. Could someone point me to a specific implementation, preferably in Java?

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  • $\begingroup$ Well, this looks like more of a Programming question. Anyway let us see if anyone has a link for the implementation. $\endgroup$
    – Sudarsan
    Sep 24, 2013 at 17:09
  • $\begingroup$ First hit on a Google search: code.google.com/p/hilbert-huang-transform/source/browse/trunk/… $\endgroup$
    – Paul R
    Sep 25, 2013 at 12:58
  • $\begingroup$ I need it too. do you know any other method with time,frequency localization. apart from HHT,wavelet? tnx $\endgroup$
    – SAH
    Sep 26, 2013 at 14:43
  • $\begingroup$ @PaulR The code that you linked doesn't even compile in Eclipse. $\endgroup$
    – Skylion
    Sep 29, 2013 at 16:29
  • $\begingroup$ Maybe you could fix the compile errors, or try one of the other results from a Google search ? Or do you just want a complete working "black box" solution, in which case StackOverflow is probably a better place to ask ? $\endgroup$
    – Paul R
    Sep 29, 2013 at 17:08

3 Answers 3

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Hilbert-Huang starts with empirical mode decomposition (EMD). I know one HHT code is available on Matlab central but I personally find it not very robust and extremely sensitive to edge effects. A more robust solution may be found here : http://perso.ens-lyon.fr/patrick.flandrin/emd.html

Once the EMD is performed, the missing step to complete HHT is the Hilbert transform which is fairly straight forward.

More details and links are mentioned in this post.

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Python implementation of the EMD is available at https://github.com/jaidevd/pyhht It is a good package with examples of the algorithm.

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You might also want to take a look at Python version PyEMD available either from pypi or GitHub. If you prefer you can simply install it from command line using

pip install EMD-signal

or

git clone https://github.com/laszukdawid/PyEMD
cd PyEMD
python setup.py install
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