Motion Compensation for an Unmanned Aerial Vehicle Remote Radar Life Sensor

被引:24
作者
Nakata, Robert H. [1 ,2 ,3 ,4 ]
Haruna, Brian [2 ]
Yamaguchi, Takashi [3 ]
Lubecke, Victor M. [2 ]
Takayama, Shigeru [3 ]
Takaba, Kiyotsugu [3 ]
机构
[1] Oahu Grp LLC, Honolulu, HI 96816 USA
[2] Univ Hawaii Manoa, Dept Elect Engn, Honolulu, HI 96816 USA
[3] Ritsumeikan Univ, Shiga 5258577, Japan
[4] Kettering Univ, Flint, MI 48504 USA
基金
日本学术振兴会; 美国国家科学基金会;
关键词
Algorithms; biomedical sensors; motion compensation; radar subsystem; remote sensing; UWB RADAR; DOPPLER; SYSTEMS; BODY;
D O I
10.1109/JETCAS.2018.2821624
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Unmanned aerial vehicle platforms are ideal for remote life sensing applications including military, humanitarian, and post-disaster search and rescue operations. Doppler radar sensors can remotely detect human respiration vital signs to assess triage but any sensor motion will corrupt the signal. The respiration signal can be recovered by measuring the platform motion with a secondary radar and removing the motion induced phase modulation from the primary radar signal that contains both the platform motion and the desired vital signs signal. We simulated and tested a motion compensation algorithm using the dual radar approach and successfully recovered the respiration signal from the radar sensor using a laboratory testbed and on an airborne quadcopter. We measured a signal to motion interference ratio improvement of 15 dB to 41 dB on the benchtop motion testbed and an improvement of 26 dB for the radar sensor on an airborne quadcopter.
引用
收藏
页码:329 / 337
页数:9
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