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    • 3. 发明授权
    • Determining physical properties of objects or fluids in multi-path clutter environments
    • 确定多路径杂波环境中物体或液体的物理性质
    • US08342027B2
    • 2013-01-01
    • US13197465
    • 2011-08-03
    • Eric K. WaltonYakup BayramOrbay TuncayBruce G. MontgomeryGary W. BruceDouglas E. CroweSteven E. Gemeny
    • Eric K. WaltonYakup BayramOrbay TuncayBruce G. MontgomeryGary W. BruceDouglas E. CroweSteven E. Gemeny
    • G01N29/36
    • G01N29/4481G01N29/022G01N29/2481G01N29/30G01N29/4436G01N2291/0423
    • A method for determining a physical property of an object or fluid in a dynamic multi-path clutter environment comprises transmitting an RF interrogation signal to a wireless sensor physically coupled to the object or fluid (gas or liquid) in the dynamic multi-path clutter environment, wherein the wireless sensor is operable to receive the RF interrogation signal, produce a reference signal and a measurement signal, and retransmit the reference signal and the measurement signal in the dynamic multi-path clutter environment. The reference signal and measurement signal are delayed by the wireless sensor by an amount of time that may be a function of the unknown physical property. The method also comprises receiving the retransmitted reference signal and the retransmitted measurement signal and comparing them in the time domain in order to determine the unknown physical property of the object or fluid. The method further comprises setting the time delays of the retransmitted reference and retransmitted measurement signals to be long enough for the ringdown time to be over but not so long so that the differential time is distorted by the dynamics of the system.
    • 一种用于在动态多径杂波环境中确定物体或物体的物理性质的方法包括将RF询问信号发射到物理耦合到物体上的无线传感器或动态多径杂波环境中的流体(气体或液体) 其中所述无线传感器可操作以接收所述RF询问信号,产生参考信号和测量信号,并且在所述动态多路径杂波环境中重传所述参考信号和所述测量信号。 参考信号和测量信号被无线传感器延迟了可能是未知物理属性的函数的时间量。 该方法还包括接收重传的参考信号和重传的测量信号,并在时域中比较它们,以便确定物体或流体的未知物理性质。 该方法还包括将重传的参考和重传的测量信号的时间延迟设置得足够长以使得振铃时间结束但不太长,使得差分时间被系统的动态失真。
    • 4. 发明申请
    • DETERMINING PHYSICAL PROPERTIES OF OBJECTS OR FLUIDS IN MULTI-PATH CLUTTER ENVIRONMENTS
    • 确定多路径离子环境中物体或流体的物理性质
    • US20120192617A1
    • 2012-08-02
    • US13197465
    • 2011-08-03
    • Eric K. WaltonYakup BayramOrbay TuncayBruce G. MontgomeryGary W. BruceDouglas E. CroweSteven E. Gemeny
    • Eric K. WaltonYakup BayramOrbay TuncayBruce G. MontgomeryGary W. BruceDouglas E. CroweSteven E. Gemeny
    • G01N29/02
    • G01N29/4481G01N29/022G01N29/2481G01N29/30G01N29/4436G01N2291/0423
    • A method for determining a physical property of an object or fluid in a dynamic multi-path clutter environment comprises transmitting an RF interrogation signal to a wireless sensor physically coupled to the object or fluid (gas or liquid) in the dynamic multi-path clutter environment, wherein the wireless sensor is operable to receive the RF interrogation signal, produce a reference signal and a measurement signal, and retransmit the reference signal and the measurement signal in the dynamic multi-path clutter environment. The reference signal and measurement signal are delayed by the wireless sensor by an amount of time that may be a function of the unknown physical property. The method also comprises receiving the retransmitted reference signal and the retransmitted measurement signal and comparing them in the time domain in order to determine the unknown physical property of the object or fluid. The method further comprises setting the time delays of the retransmitted reference and retransmitted measurement signals to be long enough for the ringdown time to be over but not so long so that the differential time is distorted by the dynamics of the system.
    • 一种用于在动态多径杂波环境中确定物体或物体的物理性质的方法包括将RF询问信号发射到物理耦合到物体上的无线传感器或动态多径杂波环境中的流体(气体或液体) 其中所述无线传感器可操作以接收所述RF询问信号,产生参考信号和测量信号,并且在所述动态多路径杂波环境中重传所述参考信号和所述测量信号。 参考信号和测量信号被无线传感器延迟了可能是未知物理属性的函数的时间量。 该方法还包括接收重传的参考信号和重传的测量信号,并在时域中比较它们,以便确定物体或流体的未知物理性质。 该方法还包括将重传的参考和重传的测量信号的时间延迟设置得足够长以使得振铃时间结束但不太长,使得差分时间被系统的动态失真。