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| Equi-amplitude Tracing Algorithm Based on Base-band Pulse Signal in Vital Signal Detecting |
| Xie Yi-fang①②; Fang Guang-you① |
| ①The Key Laboratory of High Power Microwave and Electromagnetic Radiation, The Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;②Graduate University of the Chinese Academy of Sciences, Beijing 100190, China |
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Abstract In this paper, a novel method，i.e., the equi-amplitude tracing method applicable to the detecting of vital signal is presented based on the analyses of the principle of vital signal detecting by means of base-band UWB radar. The self-developed UWB radar test set-up experiments demonstrate that the detecting scheme and the signal processing algorithm are feasible. The respiratory signal amplitude and frequency spectrum characteristics and the distance between the object and the antenna can be obtained simultaneously with distinct advantage over traditional equi-distance detecting method.
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Received: 01 April 2008
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2009, Vol. 31 
