中国医疗设备2017，Vol.32Issue(4)：21-25,5.DOI:10.3969/j.issn.1674-1633.2017.04.007
基于Savitzky-Golay滤波的超宽谱生物雷达回波信号增强方法研究
Study on the Enhancement of UWB Bio-Radar Signals via Savitzky-Golay Filtering
摘要
Abstract
Ultra-wideband (UWB) bio-radar is a new concept of radar technology mainly aiming at human detection. It has a good range resolution, penetrating ability and system compatibility, and has become a hotspot of bio-radar technology currently. At present, the enhancement of UWB bio-radar signals is mainly based on the processing of echo data in time dimension. In this paper, a new approach to enhance the echo signals of UWB bio-radar was proposed for range dimension processing. This method used the Savitzky-Golay filtering to smooth clutters and noises in echo signals by the polynomial least-square fitting, which could effectively retain weak details of the target echo information. The experimental Results showed that, under penetrating obstacles, human respiration could be detected by UWB bio-radar using the Savitzky-Golay filtering the range dimension when the signal-to-clutter-and-noise ratio of the echo signals decreased due to the human target getting further from the bio-radar. Thus this paper provides a new method to enhance the echo signals of UWB bio-radar. The method has great promise to improve the detection performance of UWB bio-radar in practical applications such as through-wall surveillance, emergency rescue and so on.关键词
超宽谱/生物雷达/Savitzky-Golay滤波/窄带连续波/地震救援Key words
ultra-wideband/bio-radar/Savitzky-Golay filtering/narrow-band continuous wave/earthquake response分类
医药卫生引用本文复制引用
熊跃宇,于霄,张杨,薛慧君,焦腾,吕昊..基于Savitzky-Golay滤波的超宽谱生物雷达回波信号增强方法研究[J].中国医疗设备,2017,32(4):21-25,5.基金项目
国家重大科研仪器设备研制专项(61327805) （61327805）
陕西省科技新星项目(2016KJXX-03). （2016KJXX-03）
