Spangl, B.; Dutter, R. - In: Computational Statistics & Data Analysis 56 (2012) 5, pp. 1188-1199
To assess the variability of heart rate in the frequency domain, usually the spectral density function of the tachogram series is estimated. However, classical spectral density estimates are well known to be prone to outlying observations; hence, robustness is an issue. Therefore, the heart rate...