http://iet.metastore.ingenta.com
1887

Estimation of Teager energy using the Hilbert–Huang transform

Estimation of Teager energy using the Hilbert–Huang transform

For access to this article, please select a purchase option:

Buy article PDF
£12.50
(plus tax if applicable)
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IET Signal Processing — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

A new method to estimate the Teager energy (TE) is presented here which uses an instantaneous energy expression and the Hilbert–Huang transform (HHT). The energy expression depends on the square of the instantaneous amplitude and digital frequency of the signal. This energy of the signal is estimated from the instantaneous energies of the intrinsic mode functions (IMFs), obtained from the HHT. The energy expression used for the TE ensures that the energy is always positive, and it is in agreement with the energy required to generate a sinusoid. It avoids the limitations in the use of the discrete TE operator (TEO), where for the output of the TEO to be positive and to give energies which match the energy required to generate a sinusoid, the signal must satisfy certain conditions. Numerical study on a data set of neuro-signals shows that these problems persist even when TEO is applied to the IMFs obtained from the empirical mode decomposition of the signal. Such a procedure is used in the Teager–Huang transform. There is a sharp drop in the number of negative values when IMFs are used, but the number is still not zero.

References

    1. 1)
      • 1. Kaiser, J.F.: ‘On a simple algorithm to calculate the ‘energy’ of a signal’. Proc. of IEEE-ICASSP'90, 1990, pp. 381384.
    2. 2)
      • 2. Kvedalen, E.: ‘Signal processing using the Teager energy operator and other nonlinear operators’. Cant.Sc.thesis, University of Oslo, May2003, Available at http://folk.uio.no/eivindk/ek-thesis-2003-05-12-final-2.pdf.
    3. 3)
    4. 4)
    5. 5)
    6. 6)
      • 6. Hamila, R., Renfors, M., Gunnarsson, G., Haverinen, T.: ‘Teager–Kaiser operator based filtering’. Tenth European Signal Processing Conf., EUSIPCO'2000, Tampere, Finland, September 2000, pp. 15451548.
    7. 7)
    8. 8)
      • 8. Maragos, P., Quatieri, T.F., Kaiser, J.F.: ‘Detecting nonlinearities in speech using an energy operator’. Proc. of the IEEE Digital Signal Processing Workshop, 1990, pp. 12.
    9. 9)
    10. 10)
      • 10. New, T.L., Foo, S.W., De Silva, L.C.: ‘Classification of stress in speech using linear and nonlinear features’. Proc. of the IEEE Int. Conf. on Acoustics, Speech and Signal Processing, 2003, pp. II-9II-12.
    11. 11)
      • 11. Atlas, L., Fang, J.: ‘Quadratic detectors for general nonlinear analysis of Speech’. Proc. of the IEEE Int. Conf. on Acoustics, Speech and Signal Processing, 1992, vol. 2, pp. 912.
    12. 12)
    13. 13)
      • 13. Zaveri, H., Williams, W., Sackellares, J.: ‘Energy based detectors of seizures’. Proc. 15th Annual Int. Conf. IEEE Engineering Medicine Biology Society, 1993, pp. 363364.
    14. 14)
    15. 15)
    16. 16)
    17. 17)
    18. 18)
    19. 19)
    20. 20)
    21. 21)
    22. 22)
      • 22. Cexus, J.C., Boudraa, A.O.: ‘Nonstationary signals analysis by Teager–Huang Transform (THT)’. Proc. EUSIPCO, Florence, Italy, 4–8 September 2006.
    23. 23)
    24. 24)
      • 24. Cexus, J.C., Boudraa, A.O.: ‘Teager–Huang analysis applied to sonar target recognition’, Int. J. Signal Process., 2004, 1, (1), pp. 2327.
    25. 25)
      • 25. Bendat, J.S., Piersol, A.G.: ‘Random data: analysis and measurement procedures’ (John Wiley & Sons, New York, 1986, 2nd edn.).
    26. 26)
    27. 27)
      • 27. Available at www.epileptologie-bonn.de/front_content.php?idcat=193&lang=3&changelang=3.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-spr.2013.0442
Loading

Related content

content/journals/10.1049/iet-spr.2013.0442
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address