胃电信号的在线频谱分析

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1988-11-01 DOI:10.1109/IEMBS.1988.94863

J. Chen, J. Vandewalle, W. Sansen, G. Vantrappen, J. Janssens

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引用次数: 5

摘要

通过附着在腹部皮肤上的皮肤电极记录人体胃肌电活动，称为胃电图(EGG)，为研究胃电行为提供了一种无创方法。胃信号的正常频率约为0.05 Hz。然而，其频率的突然变化已被观察到，一般认为与胃运动障碍有关。这表明光谱分析可以作为一种有价值的实用工具。提出了一种自回归的移动平均谱方法。它是基于自适应IIR滤波器，因此提供了信号的时间和频率信息。该方法已应用于皮肤EGG信号的运行谱分析。本文介绍了餐后卵泡蛋白的光谱分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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On-line spectral analysis of electrogastrographical signals

The recording of human gastric myoelectrical activity by means of cutaneous electrodes attached on the abdominal skin, called electrogastrography (EGG), provides a noninvasive method of studying the electrogastric behavior. The normal frequency of the gastric signal is about 0.05 Hz. However, sudden changes of its frequency have been observed and are generally considered to be related to the gastric motility disorder. This suggests that spectral analysis could serve as a valuable tool for practical purposes. An autoregressive moving-average spectral method is presented. It is based on the adaptive IIR filter and therefore provides both time and frequency information of the signal. The method has been applied to the running spectral analysis of the cutaneous EGG signals. The spectral analysis of the postprandial EGGs is presented.<>

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Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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