中国医疗设备2016，Vol.31Issue(9)：29-33,5.DOI:10.3969/j.issn.1674-1633.2016.09.007
双通道SFCW生物雷达对静止人体目标探测方法的研究
Research on Application of Dual-Channel SFCW Bio-Radar in Detection of Static Human Targets
摘要
Abstract
Bio-radar, which is aimed at detection of vital signs, is an emerging concept. The vital sign of static human becomes weak and easily interfered by the surrounding environment due to the attenuation of the obstacles, which makes it difficult for bio-radars to obtain the high performance in detection of static human body. Dual-channel SFCW (Stepped-Frequency Continuous Wave) radar is used to improve this problem in this paper. The dual-channel SFCW echo model of vital signs are established firstly, and then the influence of the SFCW radar parameter on the detection performance is analyzed. On this basis, a new method of static human body detection based on dual-channel SFCW radar is proposed. In this method, preprocessing is used to suppress interference, and then dual-channel coherence is adopted to further suppress environmental clutter. The CFAR detector, morphological filtering and clustering are applied in detection and localization of static human. Experimental results show that the proposed method can effectively suppress clutter and improve the detection performance.关键词
生物雷达/步进频率连续波/双通道/静止人体Key words
bio-radar/stepped-frequency continuous wave/dual-channel/static human分类
医药卫生引用本文复制引用
张卓然,梁福来,李浩楠,吕昊,祁富贵,安强,王健琪..双通道SFCW生物雷达对静止人体目标探测方法的研究[J].中国医疗设备,2016,31(9):29-33,5.基金项目
国家科技支撑计划（2014BAK12B02）；国家重大科研仪器设备研制专项（61327805）；陕西省自然科学基金（2014JQ2-6034）。 （）
