Noise coherence in closely-spaced electrodes: The implications for spatial averaged ECG recordings

被引:3
作者
Turner, IN
Wang, W
English, MJ
Vincent, R
机构
[1] UNIV SUSSEX,TRAFFORD CTR MED RES,BRIGHTON BN1 9QT,E SUSSEX,ENGLAND
[2] UNIV SUSSEX,SCH ENGN,BRIGHTON BN1 9QT,E SUSSEX,ENGLAND
[3] ROYAL SUSSEX CTY HOSP,BRIGHTON BN2 5BE,E SUSSEX,ENGLAND
关键词
D O I
10.3109/03091909509009987
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Ensemble signal averaging is conventionally used to reduce the noire content of ECG recordings. One shortcoming of this technique is that it removes the possibility of registering transient signals. As a consequence the simultaneous averaging of spatially related lead; has been used. This relies on the recording electrodes receiving correlated signal components for reinforcement together with uncorrelated noise. We have developed a methodology for studying EMG noise reduction by spatial averaging and present results for different electrode spacings which suggest minimum separations for noise rejection.
引用
收藏
页码:158 / 161
页数:4
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