Localization of Living-Bodies Using Single-Frequency Multistatic Doppler Radar System
Localization of Living-Bodies Using Single-Frequency Multistatic Doppler Radar System
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DOI：
10.1587/transcom.e92.b.2468
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发表时间：
2009-07
期刊：
影响因子：
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通讯作者：
T. Miwa;Shun Ogiwara;Y. Yamakoshi
中科院分区：
文献类型：
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作者：
T. Miwa;Shun Ogiwara;Y. Yamakoshi
近年来，快速检测由于地震和雪崩而被埋在倒塌的房屋、瓦砾和土壤下的人类对象以减少灾害中的伤亡变得重要。这种检测系统已经被开发为一种基于由受检者乳房的运动产生的相位差的微波位移传感器。由于几乎所有的系统都由单个发射机和接收机对组成，因此很难快速扫描大面积。在本文中，我们提出了一个单频多基地雷达系统，以检测呼吸的人存在的发射和接收阵列包围的区域。利用多普勒频率范围内的复振幅，利用MUSIC算法对振动目标进行定位。通过严格求解介质球目标模型合成的模拟信号验证了该算法的有效性。我们展示了实验3D定位结果，使用一个发达的多基地多普勒雷达系统在250 MHz左右。
Recently, it has become important to rapidly detect human subjects buried under collapsed houses, rubble and soil due to earthquakes and avalanches to reduce the casualties in a disaster. Such detection systems have already been developed as one kind of microwave displacement sensors that are based on phase difference generated by the motion of the subject's breast. Because almost all the systems consist of single transmitter and receiver pair, it is difficult to rapidly scan a wide area. In this paper, we propose a single-frequency multistatic radar system to detect breathing human subjects which exist in the area surrounded by the transmitting and receiving array. The vibrating targets can be localized by the MUSIC algorithm with the complex amplitude in the Doppler frequency. This algorithm is validated by the simulated signals synthesized with a rigorous solution of a dielectric spherical target model. We show experimental 3D localization results using a developed multistatic Doppler radar system around 250 MHz.