电磁波生命信息近程遥测研究

The theory, practice and application for short distance life-infirmation detection and microwave cardio-graph (MCG) signal extraction are explored and discussed in this research project. Starting from the basic research for body-microwave scattering mechenism and heart-movement sensing principle, a "Remote Microwave Monitor For Heart Beat Rhythm and Breath Frequency" prototype apparatus and a "MCG (Microwave Cardio Graph) Meter" were developed and tested. A large amount of data from the experiments were collected (about more that 800 sets) and bookbinded for reference. Expriment resuls show that: the apparatus can extract the heart beat rhythm and breath frequency signals in the distance of 0.5～1.0 meter far away from the human body; the MCG signal extracted is steady and with distinguishing features and repeatanc y. This achievement can be used in the case where non-connected manner is necessary for getting heart beat and breath information, such as to remote burn patient's heart beat rhythm and breath frequency, also it can be used for security protection purpose or for detecting terrorist etc..

电磁波穿越空间和障碍物射向生物体时，其回射波（反射波和散射波）受到生物体内微弱运动的调制而含有生命信息。本项目研究如何综合微波﹑计算机和数字信号处理技术设计高精度零平衡快速微变检测系统来提取有用信号，探索一种新的生物体内信息获取手段。可以用此方法来获取与心脏运动信息紧密相关的"心动图"，进行遥测心跳呼吸信号及医护监测，探索生物体组织在受到外界作用后可能产生的某种反应信息等，在生物医学工程领域内有一定的应用前景。目前拟用于对烧伤病人心跳呼吸信号的遥测监护。.