PROJECT TITLE :
Estimation of Teager energy using the Hilbert–Huang transform
A new method to estimate the Teager energy (TE) is presented here that uses an instantaneous energy expression and also the Hilbert̵one;Huang rework (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 usually positive, and it is in agreement with the energy needed to get a sinusoid. It avoids the restrictions in the utilization of the discrete TE operator (TEO), where for the output of the TEO to be positive and to convey energies that match the energy required to come up with a sinusoid, the signal should satisfy bound conditions. Numerical study on a knowledge set of neuro-signals shows that these issues 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 Teager̵one;Huang rework. There is a sharp drop in the amount of negative values when IMFs are used, but the amount remains not zero.
Did you like this research project?
To get this research project Guidelines, Training and Code... Click Here