摘要
某新型雷达通过提取回波中人体的心跳和呼吸信号,达到探测人体的目的,在医学治疗、灾后搜救、反恐作战等领域具有广阔的应用前景。由于目标信号无论在时域或频域上强度都很微弱,传统的雷达信号处理方法很难将其从回波中提取出来,文中基于Hilbert-Huang变换(HHT)方法提出了一种新的精细处理雷达回波的技术,对该型号雷达的实录数据的处理结果表明,上述新技术能够有效地提取出目标的精细特征。
New type radar can be used in the filed of medicine, disaster search, antiterrorism, and so on, which can detect human by extracting the signal of human heartbeat and breath from the echoes. It＇s very hard to extract the signal because it is very tiny compared with the echoes both in the filed of time and frequency. A novel radar signal processing method based on Hilbert-Huang transform is proposed in this paper, and it is successful by extracting the signal from the practical radar data.
出处
《现代雷达》
CSCD
北大核心
2013年第7期16-19,共4页
Modern Radar
关键词
希尔伯特-黄变换
雷达信号处理
微多普勒
心跳检测
呼吸检测
Hilbert-Huang tnansform
radar signal processing
micro-Doppler
heartbeat detection
breath detection
