Title :
Wavelet and Fourier Analysis of Short-Term Rabbits´ Cardiovascular Oscillation
Author :
Postolache, G. ; Postolache, O. ; Girão, P. Silva
Author_Institution :
Escola Superior de Saude, Universida de Atlantica, Oeiras
Abstract :
In order to assess the autonomic nervous system cardiovascular control of rabbits, five time-frequency transforms were implemented and studied using LabVIEW graphical programming language and Matlab. The electrocardiogram and blood pressure signals were acquired and processed in order to evaluate the rabbit´s autonomic nervous system (RANS) through quantification of heart rate and blood pressure variability. As parts of the virtual system software for RANS characterization by short time Fourier transform (STFT), Choi- Williams (CW), Wigner Wille distributions (WVD), continuous wavelet transform (CWT) and discrete wavelet transform (DWT) analyzing blocks were designed and implemented. The CWT and DWT offer major advantages over STFT, CW and WVD
Keywords :
Fourier transforms; Wigner distribution; blood pressure measurement; cardiovascular system; discrete wavelet transforms; electrocardiography; medical signal processing; Choi-Williams method; Fourier analysis; Wigner Wille distributions; autonomic nervous system; blood pressure signals; cardiovascular oscillation; cardiovascular signals; continuous wavelet transform; discrete wavelet transform; electrocardiogram signal; graphical programming language; time-frequency transforms; virtual instrumentation; virtual system software; wavelet analysis; Autonomic nervous system; Cardiology; Continuous wavelet transforms; Control systems; Discrete Fourier transforms; Discrete wavelet transforms; Fourier transforms; Rabbits; Radio access networks; Wavelet analysis; cardiovascular signals; virtual instrumentation; wavelet transform;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE
Conference_Location :
Sorrento
Print_ISBN :
0-7803-9359-7
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2006.328253
