Abstract:In the study of life detection based on bioradar, strong clutter has a very important influence on
the signal-to-noise ratio of radar echo. And it is difficult to be removed by using traditional signal processing
methods, so that false alarm or missing result usually occurs in the complex environment. In the light of existing
ultra-wideband (UWB) radar technology, this paper put forward a suppression method of strong clutter based
on the dual-frequency IR-UWB radar, which could detect target at the same time by using two pairs of antennas
with different center frequencies. At first, the radar echo signal was respectively processed in different channels
to enhance the weak vital signal of human. Then in order to suppress the interference of strong clutters, the
data of two channels were processed together with adaptive clutter elimination technology. Experiments were
conducted in two different scenarios of brick wall and simulation ruins, and the results showed that the accuracy
of radar detection could be significantly improved by using the method proposed in this paper.
张芫蓓,王帅杰,王昊,
祁富贵,王健琪,李钊. 基于双源IR-UWB生物雷达的强反射杂波抑制[J]. 中国医疗设备, 2016, 31(11): 28-32.
ZHANG Yuan-bei,
WANG Shuai-jie, WANG Hao,
QI Fu-gui, WANG Jian-qi,
LI Zhao. Suppression of Strong Clutter Based on the Dual-Frequency IR-UWB
Bioradar. China Medical Devices, 2016, 31(11): 28-32.