Vital Signs Detection of Adjacent Targets with Adaptive Digital Beamforming Technique
Non-contact vital sign detection based on radar has gained rapid development as a new biomedical sens-ing technology in the past decades.However,most of existing works are limited by the radar system or angular resolu-tion,which cannot separate the vital signs of adjacent targets located at the same distance and the same beam.For adja-cent target vital signs detection,an algorithm based on adaptive beamforming is proposed to realize the simultaneous de-tection of adjacent target vital signs signals.The adaptive digital beamforming algorithm is used to generate a beam pointing to the tested targets.A null is generated at the angle of the adjacent interfering targets at the same time.As a result,the vital signs of adjacent targets can be obtained.The experimental results show that the vital signs of adjacent targets at the same distance can be successfully separated using the proposed method.
adaptive digital beamformingDoppler radarvital sign detection of adjacent targets
国家科技期刊平台
NSTL
万方数据
