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    Device for controlling the conical scanning frequency for conical scanning radar systems
    1.
    发明授权
    Device for controlling the conical scanning frequency for conical scanning radar systems 失效
    用于控制锥形扫描雷达系统的锥形扫描频率的装置

    公开(公告)号：US4107683A

    公开(公告)日：1978-08-15

    申请号：US777813

    申请日：1977-03-15

    申请人： Filippo Neri ,  Alfredo Albrande

    发明人： Filippo Neri ,  Alfredo Albrande

    IPC分类号： G01S7/36 ,  G01S13/24

    CPC分类号： G01S7/36 ,  G01S13/24

    摘要： A device for controlling the conical scanning frequency of conical scanning radar systems. An antenna illuminator is caused to revolve by means of a three-phase asynchronous rotary field motor. The angular frequency of conical scanning is changed in a random or pseudo-random manner by means of a reference generator associated with the asynchronous motor, a random or pseudo-random signal generator, and a circuit comparing the signal of the reference generator and the signal of the signal generator. The comparison circuit provides "greater," "less" and "equal" outputs. A switching device driven by those outputs couples a braking magnetic-field or the three-phase supply to the motor, depending upon whether a "greater" or "less" output, respectively is the present comparison circuit. The "equal" output also controls the change of state for the random or pseudo-random signal generator.

    摘要翻译： 一种用于控制圆锥扫描雷达系统锥形扫描频率的装置。 通过三相异步旋转励磁电机使天线照明器旋转。 锥形扫描的角频率通过与异步电动机相关联的参考发生器，随机或伪随机信号发生器以及将参考发生器的信号与信号进行比较的电路以随机或伪随机方式改变 的信号发生器。 比较电路提供“较大”，“较少”和“相等”的输出。 由这些输出驱动的开关装置分别根据当前比较电路是否“较大”或“较小”输出将制动磁场或三相电源耦合到电动机。 “相等”输出还控制随机或伪随机信号发生器的状态变化。

    Systems for reducing the elevation error for tracking radars of low height targets
    3.
    发明授权
    Systems for reducing the elevation error for tracking radars of low height targets 失效
    用于降低跟踪低高度目标雷达的高程误差的系统

    公开(公告)号：US4110752A

    公开(公告)日：1978-08-29

    申请号：US784871

    申请日：1977-04-05

    申请人： Filippo Neri

    发明人： Filippo Neri

    IPC分类号： G01S13/68 ,  G01S9/02

    CPC分类号： G01S13/68

    摘要： A system for the automatic correction of the nodding elevation errors for radars tracking targets at low height, comprising in a conventional mode a receiving and transmitting group associated with an intermediate frequency channel and with an antenna servo in azimuth and elevation, having a channel of azimuth error and a channel of elevation error, comprising means for detecting the variations of the amplitude of the echo signal due to the multiple reflection effected at low height and means for subtracting the signal formed by said variations from the channel of elevation error of the antenna servo.

    摘要翻译： 一种用于自动校正低高度雷达跟踪目标的点头高程误差的系统，包括在常规模式中与中频通道相关联的接收和发射组以及具有方位角和仰角的天线伺服，具有方位角 误差和高程误差通道，包括用于检测由于在低高度处实现的多次反射引起的回波信号的振幅的变化的装置，以及用于从天线伺服的高程误差信道中减去由所述变化形成的信号的装置 。

    Device for tuning a VCO to the carrier frequency of each radar pulse
    4.
    发明授权
    Device for tuning a VCO to the carrier frequency of each radar pulse 失效
    用于将VCO调谐到每个雷达脉冲的载波频率的装置

    公开(公告)号：US4721924A

    公开(公告)日：1988-01-26

    申请号：US852955

    申请日：1986-05-12

    申请人： Arturo Masdea ,  Pietro Bartolini ,  Gianfranco Colavito ,  Filippo Neri

    发明人： Arturo Masdea ,  Pietro Bartolini ,  Gianfranco Colavito ,  Filippo Neri

    IPC分类号： G01S7/28 ,  H03L7/087 ,  H03L7/14 ,  H03L7/06

    CPC分类号： G01S7/28 ,  H03L7/087 ,  H03L7/14

    摘要： An electronic device for rapidly tuning a voltage controlled oscillator to the radar carrier frequency of each of the individual radar pulses. A frequency discriminator (1) of the quadricorrelator type is supplied with the incoming pulses and with the output of the VCO (5) to provide the control voltage to the VCO (5) via amplifying stages (2), (4) and a sample-and-hold circuit (3) that maintains the tuned frequency for time durations greater than 100 usec. The operating frequency range of the device is between 6GHz-18GHz.

    摘要翻译： PCT No.PCT / IT85 / 00014 Sec。 371日期：1986年5月12日 102（e）日期1986年5月12日PCT提交1985年7月3日PCT公布。 出版物WO86 / 00768 日期1986年1月30日。用于将压控振荡器快速调谐到每个雷达脉冲的雷达载波频率的电子设备。 四通道相关器类型的鉴频器（1）被提供有输入脉冲和VCO（5）的输出，以通过放大级（2），（4）和样本（5）向VCO（5）提供控制电压 保持电路（3），其持续时间的调谐频率大于100 usec。 器件的工作频率范围在6GHz-18GHz之间。