The Teager-Kaiser Energy Cepstral Coefficients as an Effective Structural Health Monitoring Tool

Use of the Teager-Kaiser energy operator for condition monitoring of a wind turbine gearbox

This paper deals with the condition monitoring of a wind turbine gearbox under varying operating conditions, which cause nonstationarity. The gearbox vibration signals are decomposed into a set of monocomponent signals using the Empirical Mode Decomposition (EMD) method. The Teager-Kaiser Energy Operator (TKEO) in combination with an energy separation method is also presented as an alternative ...

On the positivity of an energy operator: the interplay of amplitude and phase modulation in the Teager-Kaiser energy operator

Structural Health Monitoring Systems as a Tool for Seismic Protection

Structural Health Monitoring for civil structures is becoming increasingly popular in Europe and worldwide also because of the opportunities that it offers in the fields of construction management and maintenance. Reduction of inspection costs, research, with the possibility to better understand the behaviour of structures under dynamic loads, seismic protection, observation, in real or near re...

Detection of sperm whale clicks based on the Teager–Kaiser energy operator

The development of an algorithm for automatic detection of sperm whale clicks in large recordings is described. It is based on the Teager–Kaiser (TK) energy operator and it is able to detect efficiently creaks as well as regular clicks. A matching filter is first used as a pre-processor in order to overcome the difficulties caused by the multi-pulse structure of regular clicks. Next, the TK ene...

Auditory Teager energy cepstrum coefficients for robust speech recognition

In this paper, a feature extraction algorithm for robust speech recognition is introduced. The feature extraction algorithm is motivated by the human auditory processing and the nonlinear Teager-Kaiser energy operator that estimates the true energy of the source of a resonance. The proposed features are labeled as Teager Energy Cepstrum Coefficients (TECCs). TECCs are computed by first filterin...