Use of the Teager-Kaiser Energy Operator for Muscle Activity Detection in Children

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 ...

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...

Rotor Fault Detection of wind turbine Squirrel cage Induction Generator using Teager-Kaiser Energy operator

This paper proposes the use of the Teager–Kaiser energy operator (TKEO) for the detection of a broken rotor bar (BRB) in a squirrel cage induction generator, which is used usually in wind energy systems. The TKEO is investigated using the non-stationary signals representation in the time/frequency domain by sensing the estimation of the instantaneous amplitudes and frequencies present on the st...

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

Teager-Kaiser Operator improves the accuracy of EMG onset detection independent of signal-to-noise ratio.

A temporal analysis of electromyographic (EMG) activity has widely been used for non-invasive study of muscle activation patterns. Such an analysis requires robust methods to accurately detect EMG onset. We examined whether data conditioning, supplemented with Teager-Kaiser Energy Operator (TKEO), would improve accuracy of the EMG burst onset detection. EMG signals from vastus lateralis, collec...