Device and method for locating a mobile approaching a surface reflecting electromagnetic waves
    1.
    发明授权
    Device and method for locating a mobile approaching a surface reflecting electromagnetic waves 有权
    用于定位接近反射电磁波的表面的移动设备的装置和方法

    公开(公告)号:US08378885B2

    公开(公告)日:2013-02-19

    申请号:US12531657

    申请日:2008-03-14

    IPC分类号: G01S13/08

    CPC分类号: G01S13/913 G01S13/685

    摘要: Device and a method for locating a mobile object approaching a surface reflecting electromagnetic waves. The location device includes an emission antenna and a reception antenna. The emission antenna has one or more emission positions emitting a detection signal toward the mobile object. The reception antenna has at least one column of one or more reception positions, receiving a signal transmitted by the mobile object. An emission of the detection signal is activated on each emission position. An emission position that produces a detection by the reception antenna, of the signal of maximum energy transmitted by the mobile object, is selected to track the mobile object. One or more signals of maximum energy, received by one or more reception positions, are used to angularly locate the mobile object. The invention can be used to determine the position of an aircraft in the final landing phase for a guidance device.

    摘要翻译: 用于定位接近反射电磁波的表面的移动物体的装置和方法。 定位装置包括发射天线和接收天线。 发射天线具有朝向移动物体发射检测信号的一个或多个发射位置。 接收天线具有至少一列一个或多个接收位置,接收由移动对象发送的信号。 在每个发射位置激活检测信号的发射。 选择由接收天线产生由移动对象发送的最大能量的信号的发射位置,以跟踪移动对象。 使用由一个或多个接收位置接收的最大能量的一个或多个信号来角度地定位移动对象。 本发明可以用于确定飞机在用于引导装置的最终着陆阶段中的位置。

    Method of detecting the division of a radar target
    2.
    发明授权
    Method of detecting the division of a radar target 失效
    检测雷达目标的方法

    公开(公告)号:US5227796A

    公开(公告)日:1993-07-13

    申请号:US866854

    申请日:1992-04-10

    申请人: Erik R. Arvidsson

    发明人: Erik R. Arvidsson

    IPC分类号: G01S13/68

    CPC分类号: G01S13/685

    摘要: A method of detecting the division of a radar target can detect a target, for instance caused by the release of a weapon from an aircraft which is tracked by a monopulse radar whose antenna is aligned onto the target with the aid of azimuth and/or elevation difference signals. Division of the radar target can be detected irrespective of whether the target is equipped with and uses an interference transmitter, by establishing a search channel in the radar difference channels. This channel has a sensitivity which is very low in a direction towards the tracked target, but which increases rapidly in directions which deviate somewhat from the direction towards the target. The search channel can be established by comparison of the absolute values of the signal levels in the difference channels with a threshold value.

    Radar, notably for the correction of artillery fire
    3.
    发明授权
    Radar, notably for the correction of artillery fire 失效
    雷达,特别是纠正炮火

    公开(公告)号:US4926183A

    公开(公告)日:1990-05-15

    申请号:US302249

    申请日:1989-01-27

    申请人: Louis Fourdan

    发明人: Louis Fourdan

    IPC分类号: G01S13/44 G01S13/68

    CPC分类号: G01S13/44 G01S13/685

    摘要: A radar, notably for the correction of artillery fire, comprises means for an antenna scan, in bearing, in a limited zone .DELTA.G around a central position coinciding with the objective in that, and means to compare the received signals with a set of reference signals representing the responses awaited from virtual targets that are evenly spaced out, in bearing, within the monitored space .DELTA.G.

    摘要翻译: 特别是用于校正火炮的雷达包括用于天线扫描的装置,在轴承中,围绕与该目标相符的中心位置的有限区域DELTA G以及将接收的信号与一组参考值进行比较的装置 表示在受监视的空间DELTA G内均匀地间隔开的虚拟目标的等待响应的信号。

    Static-split tracking radar systems
    4.
    发明授权
    Static-split tracking radar systems 失效
    静态分割跟踪雷达系统

    公开(公告)号:US4788547A

    公开(公告)日:1988-11-29

    申请号:US408294

    申请日:1973-10-16

    摘要: A static-split tracking radar system with substantially improved performance. The system includes parallel signal processing channels for processing sum and difference signals from a target-seeking aerial array, to produce target tracking signals. Novel means are provided for trimming relative phase and gain of these channels to achieve substantially perfect matching, which gives a receiver stability sufficient for homing head use in a guided missile system. The system also includes a receiver for acquiring a reference frequency signal, the receiver having novel bandwidth adaptation and doppler tracking facilities. Other novel features provide improved clutter rejection and jamming immunity.

    摘要翻译: 一种具有显着提高性能的静态分割跟踪雷达系统。 该系统包括用于处理来自寻靶天线阵列的和信号和差分信号的并行信号处理通道,以产生目标跟踪信号。 提供了用于修整这些通道的相对相位和增益的新颖装置,以实现基本上完美的匹配,这使接收机稳定性足以在导弹系统中用于归位头。 该系统还包括用于获取参考频率信号的接收机,接收机具有新颖的带宽适配和多普勒跟踪设备。 其他新颖特征提供了改善的杂波抑制和抗干扰能力。

    Circuit arrangement for improving accuracy of angular measurements in
radar systems
    5.
    发明授权
    Circuit arrangement for improving accuracy of angular measurements in radar systems 失效
    用于提高雷达系统角度测量精度的电路装置

    公开(公告)号:US4220953A

    公开(公告)日:1980-09-02

    申请号:US918791

    申请日:1978-06-26

    申请人: Roland Carre

    发明人: Roland Carre

    IPC分类号: G01S13/44 G01S13/68 G01S9/22

    CPC分类号: G01S13/685 G01S13/4427

    摘要: To improve the accuracy of angular measurements in a radar system by suppressing noise due to target glint, an angular-deviation signal .epsilon. derived from the output signals .SIGMA. and .DELTA. of a sum channel and a difference channel is gated so as to be read only when the sum signal .SIGMA. is at or near a maximum. In a more elaborate embodiment, passage of the deviation signal .epsilon. is also blocked when a quadrature-deviation signal .epsilon.q, likewise derived from the sum and difference signals .SIGMA. and .DELTA., has an absolute magnitude above a preferably adjustable threshold.

    摘要翻译: 为了通过抑制由于目标闪光引起的噪声来提高雷达系统中的角度测量的精度,从和通道和差分通道的输出信号SIGMA和DELTA导出的角度偏差信号ε被选通,以便仅在 和信号SIGMA处于或接近最大值。 在更精细的实施例中,当从和和和差信号SIGMA和DELTA同样导出的正交偏差信号εq具有高于优选可调阈值的绝对幅度时,偏差信号ε的通过也被阻止。

    Interfering signal sensor for angle tracking radars
    6.
    发明授权
    Interfering signal sensor for angle tracking radars 失效
    用于角度跟踪雷达的干涉信号传感器

    公开(公告)号:US3928850A

    公开(公告)日:1975-12-23

    申请号:US78360358

    申请日:1958-12-29

    申请人: SPERRY RAND CORP

    摘要: 1. In an angle tracking radar receiver, first means for generating a first signal representing the angular deviation relative to the radar tracking axis of a predetermined target, second means for generating a second signal representing the angular deviation relative to said axis of the target nearest the radar, means for comparing said first and second signals and for generating a first control signal upon the inequality of said first and second signals, means for sensing the closure within a predetermined range interval of said predetermined target and another target situated at lesser range, said means for sensing producing a second control signal upon said range closure, utilization signal generating means, and means for applying said first and second control signals to said last-named means to produce said utilization signal upon the concurrence of said first and second control signals.

    摘要翻译: 1.一种角度跟踪雷达接收机,用于生成表示相对于预定目标的雷达跟踪轴的角度偏差的第一信号的第一装置,用于生成表示相对于目标的所述轴的最小角度偏差的第二信号的第二装置 雷达,用于比较所述第一和第二信号并根据所述第一和第二信号的不等式产生第一控制信号的装置,用于在所述预定目标的预定范围间隔内检测关闭的装置和位于较小范围的另一目标的装置, 所述用于在所述范围关闭时产生第二控制信号的装置,利用信号发生装置以及用于在所述第一和第二控制信号的同时将所述第一和第二控制信号施加到所述最后命名装置以产生所述利用信号的装置 。

    Target-tracking radar and method for responding to fluctuations in target SNR
    9.
    发明授权
    Target-tracking radar and method for responding to fluctuations in target SNR 有权
    目标跟踪雷达和响应目标SNR波动的方法

    公开(公告)号:US08803731B2

    公开(公告)日:2014-08-12

    申请号:US13075299

    申请日:2011-03-30

    IPC分类号: G01S13/72 G01S13/44 G01S13/68

    摘要: Embodiments of a target-tracking radar and methods for responding to fluctuations in target SNR are generally described herein. In some embodiments, the target-tracking radar may be configured to determine whether a target can be considered a point target based on the SNR of received signals and off-boresight error estimates. Measurement-variance estimates generated from the SNR are provided to a target-state estimator when the target is determined to be a point target. When the target is determined not to be a point target, the measurement-variance estimates generated from SNR are not used by the target-state estimator. This may allow targets to be engaged at increased range.

    摘要翻译: 目标跟踪雷达的实施例和用于响应目标SNR的波动的方法在这里一般地被描述。 在一些实施例中,目标跟踪雷达可以被配置为基于接收信号的SNR和离开视轴误差估计来确定目标是否可以被认为是点目标。 当目标被确定为点目标时,从SNR产生的测量方差估计被提供给目标状态估计器。 当目标被确定为不是点目标时,由SNR产生的测量方差估计不被目标状态估计器使用。 这可能允许目标在更大的范围内进行。

    Radar tracking system
    10.
    发明授权
    Radar tracking system 失效
    雷达跟踪系统

    公开(公告)号:US07741991B1

    公开(公告)日:2010-06-22

    申请号:US07075673

    申请日:1987-06-26

    IPC分类号: G01S13/72

    摘要: An angle tracking radar system particularly for a missile with a steerable antenna and gyros strapped down to the missile body—a ‘partially strapdown’ system. The body rate signals, body acceleration signals where provided, and target position signals are converted into an electronic reference frame which is controlled to align with the target sightline, the above body and target signals being employed to produce estimates of target direction, sightline rate and sightline acceleration for use in controlling the missile.

    摘要翻译: 一种角度跟踪雷达系统,特别是用于具有可导向天线的陀飞轮和陀螺仪捆绑在导弹体上的导弹 - “部分弹跳”系统。 将体速信号,提供的身体加速度信号和目标位置信号转换成被控制为与目标视线对准的电子参考系,上述身体和目标信号用于产生目标方向,视线速率和 用于控制导弹的视线加速度。