基于生物雷达的人体步态非接触检测技术研究进展

人体步态是一个全身肌肉骨骼协调运行的复杂机制,具有特异性,可作为身份识别或临床疾病诊断的依据,在灾害救援、战场救护、反恐安保及医疗卫生等领域有着广泛的应用价值.传统的步态非接触检测技术主要包括光学图像和超声等,其易受光线、能见度及障碍物等因素影响.近年来,生物雷达技术发展迅猛,基于生物雷达的人体步态信号非接触检测技术更具优势,主要表现在:不受光线影响,可全天候识别;可穿透衣物、伪装甚至墙壁;可在烟、尘、雾等能见度低的天气条件下使用等.论述了生物雷达技术非接触检测人体步态的技术原理和方法,综述其研究现状,并对其发展趋势进行展望.

Research status of contact-free detection technology of human walking gait based on bio-radar

Human gait involves a complex mechanism of muscular skeletal coordinated operation,which is specific and can be used as the basis of identity recognitions and clinical disease diagnoses.Human gaits have wide application value in the field of disaster rescue,battlefield ambulance,counter-terrorism,security,and medical and healthcare.The traditional contact-free gait detection technology mainly depends on optical images or ultrasound,which is susceptible to light,low visibility,obstacles,etc.In recent years,with the rapidly development of bio-radar technology,the bio-radar based contact-free human gait signal detection technology has shown more advantages.It can not be affected by light,can penetrate clothing,camouflage or even walls,and can operate in all-weathe,including low visibility weather conditions such as smog,smoke and fog.In this paper,the technical principles and methods of bio-radar based contact-free human gait detection technologies were discussed,the research status was summarized,and the development trendency was prospected.