基于超宽谱生物雷达微弱生命信号的非接触监测系统  

Non-contact Monitoring System of Weak Life Signals Based on UWB Bio-Radar

作　　者：刘永星[1] 王健琪[1] 荆西京[1] 吕昊[1] 

机构地区：[1]第四军医大学生物医学工程系,西安710032

出　　处：《医疗卫生装备》2011年第5期19-20,23,共3页Chinese Medical Equipment Journal

摘　　要：目的：在穿透非金属障碍物情况下,用生物雷达实现对人体的呼吸和体动信号的现场、实时、非接触监测。方法：设计基于超宽谱（UWB）生物雷达的实时监测系统和参数;采用多线程编程技术,通过无线网络方式实时采集携带人体微弱生命体征的生物雷达回波信号;实时对生物雷达回波信号进行处理。结果：从生物雷达的回波信号中能有效提取出微弱生命呼吸信号和体动信号,并实时显示波形。结论：该系统实现了在穿透障碍物情况下现场、实时、非接触监测人体微弱生命信号,为平、战时更有效地实施医学救援提供了一个新的方法和手段,对临床非接触监护的实现也具有一定意义。Objective To realize the respiration signal and body signals of human can be monitored on the spot in real time and in non-contact way under the condition of penetrating non-metal obstacles.Methods A real-time monitoring system and parameters based on UWB bio-radar were developed.By multi-thread programming technology,radar echo signals,in which weak vital signs of human were carried,were acquired via wireless network and processed in real time.Results Weak vital respiration signal and body signals of human could be extracted efficiently and their waveforms could be displayed in real time.Conclusion The non-contact monitoring system has achieved monitoring weak vital signs on the spot and in real time,which provides a new method to carry out medical rescue efficiently in peacetime and in time of war,and makes certain sense to achieve clinical non-contact monitoring ultimately by bio-radar.

关 键 词：生物雷达 实时 非接触 生命信号 自动增益控制电路 自适应线增强器 

分 类 号：R82[医药卫生—临床医学] R318.03