ASSESSMENT OF SINGULARITIES IN THE EEG DURING A-PHASES OF SLEEP BASED ON WAVELET DECOMPOSITION

Electroencephalography (EEG) signals convey information related to different processes that take place in the brain.From the EEG fluctuations during sleep, it is possible to establish the sleep stages and identify short events, commonly related to a specific physiological process or pathology.Some of these short events (called A-phases) present an

Knowing source number correctly is the precondition for most spatial spectrum estimation methods; however, many snapshots are needed when we determine number of wideband signals.Therefore, a new method based on Bootstrap resampling is proposed in this paper.First, signals are divided into some nonoverlapping subbands; apply coherent signal methods