Authors:
Juan José González de la Rosa
1
;
África Luque
1
;
Carlos G. Puntonet
2
;
J. M. Górriz
2
and
Antonio Moreno Muñoz
3
Affiliations:
1
Univ. Cádiz, Spain
;
2
Univ. Granada, Spain
;
3
Univ. Córdoba, Spain
Keyword(s):
Higher-Order statistics, Signal processing, Transient Characterization, Power-Quality.
Related
Ontology
Subjects/Areas/Topics:
Multimedia
;
Multimedia Signal Processing
;
Neural Networks, Spiking Systems, Genetic Algorithms and Fuzzy Logic
;
Telecommunications
Abstract:
In this paper we perform a practical review on higher-order statistics interpretation. Concretely we focuss on an unbiased estimate of the 4th-order time-domain cumulants. Some synthetics involving classical noise processes are characterized using this unbiased estimate, with the goal of checking its performance and to provide the scientific community with another result, dealing with the interpretation of this signal processing tool. A real-life practical example is presented in the field of electrical power quality event analysis. The work also aims to present a set of general advice in order to save memory and gain speed in a real signal processing frame, dealing with
non-stationary processes.