Holsheimer J, Kemp B
EEG EMG Z Elektroenzephalogr Elektromyogr Verwandte Geb. 1978 Mar;9(1):14-7.
When linear relationships between bio-electrical signals have to be established, it is important to consider the possible influence of noise added to these signals during recording and processing. Using a model for the signal generation (Fig. 1A) and one for the signal processing (Fig. 1B), the influence of uncorrelated noise in parallel signal processing chains on the coherence function can be quantified (Fig. 2). This is illustrated by the results of electrophysiological experiments, in which field potentials have been recorded simultaneously by two electrodes in different parts of the rat brain.
当必须建立生物电信号之间的线性关系时，重要的是要考虑在记录和处理过程中添加到这些信号中的噪声可能产生的影响。使用信号生成模型（图1A）和信号处理模型（图1B），可以量化并行信号处理链中不相关噪声对相干函数的影响（图2）。这通过电生理实验的结果得到了说明，在该实验中，大鼠大脑不同部位的两个电极同时记录了场电位。
