基于自适应小波尺度选择的生物雷达呼吸与心跳分离方法

胡锡坤 金添

胡锡坤, 金添. 基于自适应小波尺度选择的生物雷达呼吸与心跳分离方法[J]. 雷达学报, 2016, 5(5): 462-469. doi: 10.12000/JR16103
引用本文: 胡锡坤, 金添. 基于自适应小波尺度选择的生物雷达呼吸与心跳分离方法[J]. 雷达学报, 2016, 5(5): 462-469. doi: 10.12000/JR16103
Hu Xikun, Jin Tian. Adaptive Wavelet Scale Selection-based Method for Separating Respiration and Heartbeat in Bio-radars[J]. Journal of Radars, 2016, 5(5): 462-469. doi: 10.12000/JR16103
Citation: Hu Xikun, Jin Tian. Adaptive Wavelet Scale Selection-based Method for Separating Respiration and Heartbeat in Bio-radars[J]. Journal of Radars, 2016, 5(5): 462-469. doi: 10.12000/JR16103

基于自适应小波尺度选择的生物雷达呼吸与心跳分离方法

doi: 10.12000/JR16103
基金项目: 

国家自然科学基金(61271441)

详细信息
    作者简介:

    胡锡坤(1994-),男,湖北天门人,国防科学技术大学硕士研究生,主要研究方向为超宽带雷达生命信号检测技术。E-mail:xikung_hu@126.com;金添(1980-),男,国防科学技术大学教授,博士生导师,主要从事隐蔽目标雷达成像与检测识别、新型微波传感器机理与系统实现等方面的研究工作。2009年获全国优秀博士学位论文奖,2010年入选教育部"新世纪优秀人才支持计划",2014年获国际无线电科学联盟青年科学家奖。承担国家自然科学基金、武器装备探索等多项课题,获省部级科技进步一等奖1项、二等奖2项。"信号处理与系统"国家精品课程和资源共享课主讲教师,信号处理系列课程国家级教学团队主要成员。已发表论文100余篇,获授权国家发明专利5项,出版专著3部、译著1部、教材1部。E-mail:tianjin@nudt.edu.cn

    通讯作者:

    金添tianjin@nudt.edu.cn

Adaptive Wavelet Scale Selection-based Method for Separating Respiration and Heartbeat in Bio-radars

Funds: 

The National Natural Science Foundation of China (61271441)

  • 摘要: 当使用生物雷达进行生命体征参数提取时,由于心脏跳动产生的位移形变很小,回波较为微弱,而呼吸带动的胸腔起伏回波强度较大,基于简单傅里叶变换的周期性信息检测,往往无法有效提取心跳信号。采用小波变换的方法可以较好地分离出含有心跳、呼吸运动信息的信号分量,但小波尺度的选择对于不同的场景存在细微差异,影响到了分离的效果。针对这一问题,该文采用Morlet二进小波变换,提出了一种基于信噪比阈值定标的自适应小波尺度选择方法,有效解决了不同场景的呼吸心跳分离问题。最后通过实测结果验证了算法的准确性和可行性。

     

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出版历程
  • 收稿日期:  2016-09-13
  • 修回日期:  2016-10-26

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