| 微波心动图仪的设计和研制 |
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| 引用本文： | 黄勇,安同一,钱鉴,樊明捷.微波心动图仪的设计和研制[J].华东师范大学学报(自然科学版),2004,2004(4):40-47. |
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| 作者姓名： | 黄勇 安同一 钱鉴 樊明捷 |
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| 作者单位： | 华东师范大学,信息科学技术学院,上海,200062;南京大学,电子科学与工程系,南京,210093 |
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| 基金项目： | 国家自然科学基金(39970210) |
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| 摘 要： | 设计了一个能够提取人体微波心动图的“微波心动图仪”.该仪器使用1 150 MHz微波连续波作为载波信号，用计算机控制的零平衡方法进行未调制载波抵消，用检测前向散射波(透射波)的方法绘制心动图.所研制的样机具有结构简单、灵敏度高、噪声小的特点.还给出了该样机采集的微波心动图样例，并进行了讨论.
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| 关 键 词： | 微波心动图 前向散射 未调制载波抵消 |
| 文章编号： | 1000-5641(2004)04-0040-08 |
| 收稿时间： | 2003-2-28 |
| 修稿时间： | 2003年2月1日 |
Design and Development of A Microwave Cardio Graph Meter |
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| HUNG Yong,AN Tong-yi,QIAN Jian,FAN Ming-jie.Design and Development of A Microwave Cardio Graph Meter[J].Journal of East China Normal University(Natural Science),2004,2004(4):40-47. |
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| Authors: | HUNG Yong AN Tong-yi QIAN Jian FAN Ming-jie |
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| Institution: | 1. Information Science and Technology College，East China Normal University, shanghai 200062,China; 2. Department of Electrical Science and Engineering, Nanjing University, Nanjing 210093,China |
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| Abstract: | A design of Microwave Cardio Graph Meter (MCG), by which human MCG signal can be extracted is proposed in this paper. Features: 1 150 MHz continuous carrier wave; Cancellation of un-modula-ted carrier wave by Zero-balance technique; Using forward scattering wave to improve performance. Experiments show that: the apparatus is simple in structure, and works steadily with high sensitivity and low noise. The MCG graphs are presented and discussed in detail. |
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| Keywords: | microwave cardio graph forward scattering cancellation of un-modulated carrier wave |
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