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    • 1. 发明授权
    • Doppler VOR
    • 多普勒VOR
    • US4434423A
    • 1984-02-28
    • US355514
    • 1982-03-08
    • Werner Kautz
    • Werner Kautz
    • G01S1/38G01S1/02G01S1/40H03C7/02G01S1/44
    • H03C7/027G01S1/024G01S1/40
    • In a Doppler VOR, the phase of the carrier wave of the carrier signal must lie symmetrically between the phases of the carrier waves of the sideband signals. To monitor these phase relationships, the carrier signal received by the sideband antennas (1) is applied to two mixers (14, 15) which are also fed with fractional signals of the upper and lower sidebands, respectively. The mixer output signals are applied to a phase comparator (16) whose output signal has a predetermined value corresponding to the prescribed phase relationships. The output signal of the phase comparator (16) is compared with a reference value in a monitoring facility (19).
    • 在多普勒VOR中,载波信号载波的相位必须对称地位于边带信号的载波的相位之间。 为了监视这些相位关系,由边带天线(1)接收的载波信号被施加到两个混频器(14,15),这两个混频器也分别馈送上边带和下边带的分数信号。 混频器输出信号被施加到相位比较器(16),其输出信号具有对应于规定相位关系的预定值。 相位比较器(16)的输出信号与监视设备(19)中的参考值进行比较。
    • 2. 发明授权
    • Doppler VOR
    • 多普勒VOR
    • US4591861A
    • 1986-05-27
    • US589970
    • 1984-03-15
    • Werner Kautz
    • Werner Kautz
    • G01S1/38G01S1/40G01S1/44
    • G01S1/40
    • In a doppler VOR, a plurality of antennas (1) are arranged equidistantly on a circle (20). Two opposite antenna pairs on the circle are simultaneously activated by a commutator (13) in a manner to simulate as uniform a rotation of two opposite antennas as possible. Reciprocal power dividers (12) are disposed in the lines (15) between the commutator and the antennas. They couple out a given portion of the transmitter signal and transfer it to the two next antennas but one (I, V) in relation to an active antenna (III). These two antennas (I, V), the active antenna (III), and the two intermediate antennas (II, IV), which act as parasitic elements, form an antenna group. Since two adjacent antennas are active simultaneously, two antenna groups are active simultaneously. Their radiation patterns are approximately elliptical. The portion of the extracted energy and the phase shift produced by the RF lines are so chosen that a user--due to the superposition of the two elliptical radiation patterns--sees an approximately circular radiation pattern in all spatial directions.
    • 在多普勒VOR中,多个天线(1)等距地布置在圆(20)上。 圆的两个相对的天线对由换向器(13)同时激活,以便尽可能模拟两个相对的天线的均匀旋转。 互换功率分配器(12)设置在换向器和天线之间的线路(15)中。 它们耦合出发射机信号的给定部分并将其传送到两个下一个天线,而相对于有源天线(III)传送一个(I,V)。 作为寄生元件的这两个天线(I,V),有源天线(III)和两个中间天线(II,IV)形成天线组。 由于两个相邻天线同时有效,所以两个天线组同时有效。 它们的辐射方向近似椭圆形。 提取的能量的部分和由RF线产生的相移被选择为使得用户由于两个椭圆辐射图案的叠加而在所有空间方向上看到近似圆形的辐射图案。