DocumentCode
3395775
Title
Choosing adequate average number in electrophysiological studies using correlation coefficient
Author
Shaw, F.-Z. ; Chen, R.-F. ; Tsao, H.W. ; Yen, C.-T.
Author_Institution
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Volume
2
fYear
1995
fDate
20-23 Sep 1995
Firstpage
989
Abstract
A theoretical relationship was derived among the number of trials averaged (N), initial signal-to-noise ratio (SNR) and correlation coefficient (r). The validity of this relationship was tested with a simulated signal with different amounts of noise. By selecting 0.95 as an acceptable r value, the adequate average number could be determined for different SNR conditions
Keywords
bioelectric potentials; medical signal processing; ECG; brain evoked potentials; correlation coefficient; electrophysiological studies; ensemble average; initial signal-to-noise ratio; signal waveform extraction; simulated signal; Animals; Background noise; Brain modeling; Differential equations; Electrocardiography; Humans; Signal to noise ratio; Testing; White noise; Zoology;
fLanguage
English
Publisher
ieee
Conference_Titel
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location
Montreal, Que.
Print_ISBN
0-7803-2475-7
Type
conf
DOI
10.1109/IEMBS.1995.579395
Filename
579395
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