| タイトル | Processing electrophysiological signals for the monitoring of alertness |
| 本文（外部サイト） | http://hdl.handle.net/2060/19750003593 |
| 著者（英） | Lai, D. C. |
| 著者所属（英） | Vermont Univ. |
| 発行日 | 1974-11-01 |
| 言語 | eng |
| 内容記述 | Mathematical techniques are described for processing EEG signals associated with varying states of alertness. Fast algorithms for implementing real-time computations of alertness estimates were developed. A realization of the phase-distortionless digital filter is presented which approaches real-time filtering and a transform for EEG signals. This transform provides information for the alertness estimates and can be performed in real time. A statistical test for stationarity in EEG signals is being developed that will provide a method for determining the duration of the EEG signals necessary for estimating the short-time power or energy spectra for nonstationary analysis of EEG signals. |
| NASA分類 | AEROSPACE MEDICINE |
| レポートNO | 75N11665
NASA-CR-140815 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/192165 |
