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    • 29. 发明授权
    • Radar altimeter antenna performance monitoring via reflected power measurements
    • 雷达高度计天线性能监测通过反射功率测量
    • US08259002B2
    • 2012-09-04
    • US12964957
    • 2010-12-10
    • David C. VacantiAnthony H. Luk
    • David C. VacantiAnthony H. Luk
    • G01S13/08
    • G01S13/882G01S7/4008G01S2007/4039
    • Systems and methods for radar altimeter antenna performance monitoring via reflected power measurements are provided. In one embodiment, a single antenna radar altimeter comprises: an antenna; a circulator coupled to the antenna; a transmitter coupled to the circulator; a receiver coupled to the circulator; wherein the circulator provides coupling of the transmitter and the receiver to the antenna while providing isolation between the transmitter and the receiver; a reflected power monitor positioned between the circulator and receiver; and a processor coupled to the reflected power monitor via a first analog-to-digital converter, the processor configured to compute and track reflected power measurement statistics from data generated by the reflected power monitor and provide a performance output indicating when one or more of the reflected power measurement statistics exceed a predetermined deviation threshold.
    • 提供了通过反射功率测量的雷达高度计天线性能监测的系统和方法。 在一个实施例中,单个天线雷达高度计包括:天线; 耦合到天线的循环器; 耦合到循环器的发射器; 耦合到循环器的接收器; 其中所述环行器提供所述发射机和所述接收机到所述天线的耦合,同时提供所述发射机和所述接收机之间的隔离; 位于循环器和接收器之间的反射功率监视器; 以及经由第一模数转换器耦合到所述反射功率监视器的处理器,所述处理器被配置为根据由所述反射功率监视器产生的数据来计算和跟踪反射功率测量统计,并且提供指示何时一个或多个 反射功率测量统计量超过预定的偏差阈值。