DocumentCode
1098348
Title
A beamformer for the acquisition of evoked potentials
Author
McKinley, C.A. ; Parker, P.A.
Author_Institution
New Brunswick Univ., Fredericton, NB, Canada
Volume
38
Issue
4
fYear
1991
fDate
4/1/1991 12:00:00 AM
Firstpage
379
Lastpage
382
Abstract
Evoked potential (EP) measurements using a delay and sun beamformer acquisition system are described. This system has the potential for significantly improving the signal/noise ratio (SNR) in EP measurements. The performance of the beamformer is characterized in terms of the number of electrodes and cross-channel correlation. When compared to conventional ensemble averaging, the beamformer reduces the number of response repetitions required to achieve a given SNR by a factor which approaches the number of channels in the acquisition system.
Keywords
bioelectric potentials; biomedical electronics; biomedical measurement; beamformer acquisition system; cross-channel correlation; electrodes; ensemble averaging; evoked potentials; Biomedical measurements; Delay; Electrodes; Finite impulse response filter; Noise generators; Phased arrays; Sensor arrays; Signal to noise ratio; Time measurement; Working environment noise; Electrodes; Evoked Potentials, Somatosensory; Fourier Analysis; Humans; Median Nerve; Signal Processing, Computer-Assisted;
fLanguage
English
Journal_Title
Biomedical Engineering, IEEE Transactions on
Publisher
ieee
ISSN
0018-9294
Type
jour
DOI
10.1109/10.133234
Filename
133234
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