1 Pedra de les bruixes

•

0 likes•116 views

Jordi de Mier Gràcia

La primera de les pedres amb gravats rupestres visitada avui

Sports

Viewers also liked

Final round 4B

Leo Gonzalez Cruz

Presentación Ministerio La Higuera 2008-2017

Fundación Coronas de Gloria

48 festival vallenato (Carlos Mendoza - Ivan maestre - Jesus Maestre)

Carlos Mendoza

Análisis de riesgo en lugar de trabajo

raizarodriguez

Lavadora BOSCH WAK24278EE

Alsako Electrodomésticos

Higiene y seguridad industrial

natalyguarin

Cynisca Campaign Proposal

Esther Workman

Lavadora BOSCH WAB22066EE

Alsako Electrodomésticos

2 Pedra del nen o de l'home

Jordi de Mier Gràcia

The heart rate variability (HRV), refers to the beat-to-beat alterations in heart rate, is analyzed using RR-interval (RRI) series derived from the ECG signal as an interval between successive QRS complexes. For deciphering the true HRV spectrum using FFT, the RRI series should be resampled. But re-sampling often induces a noticeable distortion in the HRV power spectral estimates. Thus, the re-sampling operation should be accurate enough in reproducing the finest variation in the given signal. This paper compared three most widely used interpolation techniques: linear, cubicspline, and Berger’s, as re-sampling methods, in an attempt to propose an optimal method of interpolation for HRV analysis. The linear and cubicspline methods based PSD estimates, for artificially generated non-uniformly sampled RRI series, introduce linear phase shifting, and thus lower the HRV frequencies. On the contrary, Berger’s method efficiently reproduced the inherent frequencies in the underlying signal except some amplitude distortion. Further, similar trends in PSD estimates were obtained for real RRI series as well. Thus, it was concluded that at the expense of some increase in computational complexity, the spectral distortion has been significantly reduced using the Berger’s interpolation based re-sampling method as compared to the linear and cubicspline methods.

Comparison of Re-sampling Methods in the Spectral Analysis of RR-interval Ser...

CSCJournals

Task 6 - Nicole Hickman

asmediac15

Propositos para el 2016

Cristhyan Alexander Vct

Carl-Counts (1)

Carl Counts

Desmiente Camilo Campos supuesto intento de desalojo de asentamientos humanos...

Camilo Campos López

Viewers also liked (14)