Title : 
Possibility of ECGs to improve reliability of detection system of inclining sleep stages by grouped a waves
         
        
            Author : 
Ninomija, Satoki P. ; Funada, Mariko Fujikake ; Yazu, Yusuke ; Ide, Hideto ; Daimon, Nobuo
         
        
            Author_Institution : 
Aoyama Gakuin Univ.
         
        
        
        
        
        
            Keywords : 
Electrocardiography; Electroencephalography; Ergonomics; Fatigue; Frequency; Heart rate variability; Sleep; Spectral analysis; Testing;
         
        
        
        
            Conference_Titel : 
Engineering in Medicine and Biology Society, 1993. Proceedings of the 15th Annual International Conference of the IEEE
         
        
            Print_ISBN : 
0-7803-1377-1
         
        
        
            DOI : 
10.1109/IEMBS.1993.979203