Lung sounds auscultation is often the first noninvasive resource for detection and
discrimination of respiratory pathologies available to the physician through the use of the …

Infragravity (IG) waves are expected to contribute significantly to coastal flooding and
sediment transport during hurricane overwash, yet the dynamics of these low-frequency …

Non-Gaussianity and nonlinearity have been shown to be ubiquitous characteristics of El
Niño Southern Oscillation (ENSO) with implication on predictability, modelling, and …

We present a definition of wavelet bicoherence based on wavelet polyspectra. We propose
a simple estimator for wavelet bicoherence, and discuss its statistical properties. In particular …

In theory, polyspectra can be applied to solve many important problems in signal processing
and data analysis. In practice, however, one has been discouraged by the poor statistical …

Bicoherence has been used in quantifying quadratic phase coupling (QPC) in
electroencephalography (EEG) signals. However, for high-dimensional EEG signals, the …

This chapter aims to provide some insight in the current techniques used for breath sound
analysis, in order to reveal, as accurately as possible, their underlying diagnostic value. This …

A rolling element bearing fault recognition approach is proposed in this paper. This method
combines the basic Higher-order spectrum (HOS) theory and fuzzy clustering method in data …

ABSTRACT A quadratic Volterra model is used to describe the nonlinear relationship
between the sea-waves and a mini-TLP surge drift motion, and the practical problems in …

Assume X 1, X 2,…, XN are realizations of N observations from a real-valued discrete
parameter third-order stationary process X t, t= 0±1,±2,…, with bispectrum f XXX (λ 1, λ 2) …