TY - JOUR
T1 - An interference suppression technique for life detection using 5.75-and 35-GHz dual-frequency continuous-wave radar
AU - Zhang, Yang
AU - Jiao, Teng
AU - Lv, Hao
AU - Li, Sheng
AU - Li, Changzhi
AU - Lu, Guohua
AU - Yu, Xiao
AU - Li, Zhao
AU - Wang, Jianqi
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2015/3/1
Y1 - 2015/3/1
N2 - Life detection radar can detect human physiological signals (respiration, heartbeat, body movement, etc.) from a long distance away by penetrating nonmetal mediums (brick walls, ruins, etc.). However, interference is often caused by respiratory movements of the radar's operator when detecting vital signs of another human target. The detection accuracy can be significantly influenced by this kind of interference. In this letter, an experimental setup with a dual-frequency continuous-wave life detection radar is investigated. The system operates with different frequencies of 5.75 and 35 GHz. An adaptive filtering method is applied to suppress the interference caused by the operator's respiratory movements. Experimental results show that this method can effectively suppress respiratory interference and improve detection accuracy.
AB - Life detection radar can detect human physiological signals (respiration, heartbeat, body movement, etc.) from a long distance away by penetrating nonmetal mediums (brick walls, ruins, etc.). However, interference is often caused by respiratory movements of the radar's operator when detecting vital signs of another human target. The detection accuracy can be significantly influenced by this kind of interference. In this letter, an experimental setup with a dual-frequency continuous-wave life detection radar is investigated. The system operates with different frequencies of 5.75 and 35 GHz. An adaptive filtering method is applied to suppress the interference caused by the operator's respiratory movements. Experimental results show that this method can effectively suppress respiratory interference and improve detection accuracy.
KW - Adaptive filters
KW - dual-frequency
KW - interference suppression
KW - life detection radar
UR - http://www.scopus.com/inward/record.url?scp=85027943174&partnerID=8YFLogxK
U2 - 10.1109/LGRS.2014.2347294
DO - 10.1109/LGRS.2014.2347294
M3 - Article
AN - SCOPUS:85027943174
SN - 1545-598X
VL - 12
SP - 482
EP - 486
JO - IEEE Geoscience and Remote Sensing Letters
JF - IEEE Geoscience and Remote Sensing Letters
IS - 3
M1 - 6882170
ER -