The aim of this paper is to present the use of the Walsh-Hadamard transform in the analysis of electromygraphic signals representing the uterine contractile activity in pigs. The Fourier spectral analysis is widely used in many biomedical applications. However, for binary time series the Walsh-Hadamard transform based on square or rectangular waves with peaks of ±1 is more accurate. Dominant normalized sequency can serve as a parameter describing the biomedical signal, which may have diagnostic importance.
Authors: Edward Oczeretko, Marta Borowska, Ewelina Brzozowska, Bartosz Pawliński, Andrzej Borusiewicz, Zdzisław Gajewski
DOI: https://doi.org/10.1109/bibe.2015.7367706
Publish Year: 2015
