| 胃多参数信号的提取及EGG后处理方法 |
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| 引用本文： | 林雪梅,林家瑞,徐邦荃,蔡凡. 胃多参数信号的提取及EGG后处理方法[J]. 华中科技大学学报(自然科学版), 1993, 0(5) |
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| 作者姓名： | 林雪梅 林家瑞 徐邦荃 蔡凡 |
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| 作者单位： | 华中理工大学生物工程系(林雪梅，林家瑞，徐邦荃)，华中理工大学生物工程系(蔡凡) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 介绍自行研制的胃多参数监测诊断仪中多参数信号的提取方法,重点讨论了采用自适应滤波的方法消去胃电信号中的呼吸干扰的原理.给出了实验结果,实验结果表明这种方法是有效的.
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| 关 键 词： | 胃 体表胃电 自适应滤波 pH值 温度 压力 诊断仪 |
Gastric Multiparameter Signal Detection and Post-Processing technique on EGG |
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| Lin Xuemei Lin Jiarui Xu Bangquan Cai Fan. Gastric Multiparameter Signal Detection and Post-Processing technique on EGG[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1993, 0(5) |
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| Authors: | Lin Xuemei Lin Jiarui Xu Bangquan Cai Fan |
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| Affiliation: | Lin Xuemei Lin Jiarui Xu Bangquan Cai Fan |
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| Abstract: | The acquiring method of signals from a device for gastric multiparameter monitoring diagnosis is described. Signals detected by sensors or electrodes are transduced, amplified, filtered respectively and digitized through an A/D converter and then sent to a 8031 or a microcomputer. The preamplifier is of rather low noise and good stability. Emphasis is placed on a new type of EGG signal processing technique with an adaptive filter to eliminate the respiratory artefacts in EGG. Almost all the respiratory artefacts are superimposed upon all the EGG signals. In some gastric motility disorders, especially tachygastria, the frequency of EGG is the same as that of the respiratory artefact. Test results are given. |
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| Keywords: | gastric electrogastrography adaptive filter pH value temperature pressure diagnosing device |
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