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    • 72. 发明公开
    • LIFE DETECTING RADARS
    • LEBENSERKENNUNGSRADARE
    • EP2986997A1
    • 2016-02-24
    • EP14785477.2
    • 2014-04-18
    • California Institute of Technology
    • LUX, James, PaulCABLE, Vaughn, P.HAQUE, Salman, MohammedMCKEE, Michael, RayGHAEMI, HiradKALANTAR, OHANIAN, Richard
    • G01S7/40G01R13/00
    • A61B5/0022A61B5/024A61B5/0507A61B5/0816A61B5/1126A61B5/117A61B5/7257A62B33/00G01S7/003G01S13/347G01S13/56G01S13/88G06F19/00G16H40/67
    • Systems and methods for detecting biometrics using a life detecting radar are disclosed. Life detecting radars can include transmit antennas configured to transmit continuous microwave (“CW”) radio signals that reflect back upon making contact with various objects. The signal can be systematically varied in frequency to provide a signal that is essentially continuous with short gaps between transmissions at different frequencies. The reflected return signals are received by one or more receive antennas and processed to detect one or more targets. The received signal can include a static (i.e. constant phase) signal corresponding to reflections from objects that do not move. The received signal can also include a phase varying signal that corresponds to reflections from a living target having measurable biometrics including (but not limited to) breathing patterns and heartbeats. Clutter can be removed and the remaining portions of the received signal are analyzed for target detection.
    • 公开了使用寿命检测雷达来检测生物识别的系统和方法。 生命检测雷达可以包括配置成在与各种物体接触时反射回发射的连续微波(“CW”)无线电信号的发射天线。 该信号可以在频率上系统地变化,以提供基本上与不同频率的传输之间的短间隙连续的信号。 反射的返回信号由一个或多个接收天线接收并被处理以检测一个或多个目标。 所接收的信号可以包括对应于不移动的物体的反射的静态(即,恒定相位)信号。 所接收的信号还可以包括对应于来自具有可测量生物特征的活的目标的反射的相变信号,包括(但不限于)呼吸模式和心跳。 可以去除杂波,并分析接收信号的剩余部分以进行目标检测。