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公开(公告)号：US5708437A
公开(公告)日：1998-01-13
申请号：US605066
申请日：1996-03-07
申请人： Bernard Gellekink
发明人： Bernard Gellekink
CPC分类号： G01S13/5244 , G01S13/24 , G01S13/53 , G01S2013/0254
摘要： A radar apparatus having a phased array antenna with a large number of transmit and receive modules, a control unit and a video processor. The control unit generates a number of pulse bursts per azimuth-elevation direction, all of which shows slight carrier frequency differences. The video processor determines a doppler spectrum and compared successive spectra for each pulse burst. As a result of the frequency differences, clutter does not show much of a shift while targets which are subject to fold-back in the frequency domain will show considerable shift. A threshold based on a mean spectrum therefore enables detection.
摘要翻译： PCT No.PCT / EP94 / 02905 Sec。 371日期：1996年3月7日 102（e）1996年3月7日PCT PCT 1994年9月1日PCT公布。 公开号WO95 / 07472 日期：1995年3月16日具有大量发射和接收模块的相控阵天线的雷达装置，控制单元和视频处理器。 控制单元产生每个方位角方向的脉冲脉冲数，所有脉冲都显示轻微的载波频率差。 视频处理器确定多普勒频谱，并比较每个脉冲串的连续频谱。 作为频率差异的结果，杂波不会显示很大的偏移，而在频域中经受折叠的目标将显示相当大的变化。 因此，基于平均频谱的阈值能够进行检测。
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公开(公告)号：US4670755A
公开(公告)日：1987-06-02
申请号：US603055
申请日：1984-04-23
CPC分类号： G01S13/42 , G01S13/106 , G01S13/87
摘要： A pulse radar apparatus is provided with a transmitter (1), a transmitting antenna (2) and a receiving antenna system (3) with a first and a second receiving channel (4 and 5) coupled thereto. The receiving antenna system (3) comprises N stacked receiving antennas (A.sub.0, A.sub.1, . . . , A.sub.N-1). The first receiving channel (4) comprises N receiving circuits (B.sub.0, B.sub.1, . . . , B.sub.N-1), each connected to a corresponding receiving antenna (A.sub.0, A.sub.1, . . . , A.sub.N-1) and each processing the particular echo signal into two orthogonally phase-detected and digitized video signal components, and a beamformer (14) to derive from said components the orthogonal components I.sub.k, Q.sub.k of the video signal determined jointly by the N receiving circuits in accordance with a receiving beam pattern k corresponding with a specific elevation interval. The second receiving channel (5) comprises N receivers (B.sub.0, B.sub.1, . . . , B.sub.N-1 ), each connected to a corresponding receiving antenna (A.sub.0, A.sub.1, . . . , A.sub.N-1); a beamformer (17) to derive from the signals of the N receivers (B.sub.0, B.sub.1, . . . , B.sub.N-1) an echo signal determined in accordance with a given receiving beam pattern; and a signal processing circuit (18) for processing said echo signal into two orthogonally phase-detected and digitized video signal components I, Q. The apparatus further comprises a video processor (16) for processing the applied I.sub.k, Q.sub.k and I, Q signals.
摘要翻译： 脉冲雷达装置设置有发射机（1），发射天线（2）和接收天线系统（3），其中耦合有第一和第二接收信道（4和5）。 接收天线系统（3）包括N个堆叠的接收天线（A0，A1，...，AN-1）。 第一接收信道（4）包括N个接收电路（B0，B1，...，BN-1），每个接收电路连接到对应的接收天线（A0，A1，...，AN-1） 回波信号转换为两个正交相位检测和数字化视频信号分量，以及波束形成器（14），从所述分量导出根据接收波束图案k由N个接收电路联合确定的视频信号的正交分量Ik，Qk 对应于特定的高程间隔。 第二接收信道（5）包括N个接收机（B0，B1，...，BN-1），每个接收机连接到对应的接收天线（A0，A1，...，AN-1）; 根据给定的接收波束图形确定的回波信号从波束形成器（17）导出N个接收机（B0，B1，...，BN-1）的信号; 以及用于将所述回波信号处理成两个正交相位检测和数字化视频信号分量I，Q的信号处理电路（18）。该装置还包括用于处理所施加的Ik，Qk和I，Q信号的视频处理器（16） 。
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公开(公告)号：US4394659A
公开(公告)日：1983-07-19
申请号：US227097
申请日：1980-12-12
申请人： Bernard Gellekink
发明人： Bernard Gellekink
CPC分类号： G01S13/4436 , G01S13/24 , G01S13/52 , G01S7/4021 , G01S7/4052 , G01S2007/4069
摘要： A monopulse radar comprising a pilot signal generator (20) for injecting phase and amplitude-defined pilot signals into the separate receiving channels (6-12, 3, 16-19) to obtain correction signals through the variation in the mutual phase and amplitude relationship between the separate receiving channels for correcting angle error signals derived from target return signals. The pilot signal generator (20) and the transmitter (1) are tunable and a control circuit is incorporated for adapting the pilot signal generator (20) relative to the frequency of the target return signals.
摘要翻译： PCT No.PCT / NL80 / 00012 Sec。 371日期1980年12月17日第 102（e）日期1980年12月12日PCT提交1980年4月8日PCT公布。 出版物WO80 / 02326 日期：1980年10月30日。一种单脉冲雷达，包括导频信号发生器（20），用于将相位和幅度定义的导频信号注入到分离的接收信道（6-12,3,16-19）中，以通过变化获得校正信号 在分离的接收通道之间的相位和幅度关系中，用于校正从目标返回信号导出的角度误差信号。 导频信号发生器（20）和发射机（1）是可调谐的，并且并入控制电路，用于相对于目标返回信号的频率使导频信号发生器（20）适配。
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公开(公告)号：US4975705A
公开(公告)日：1990-12-04
申请号：US378951
申请日：1989-07-12
IPC分类号： G01S7/32 , G01S7/42 , G01S13/04 , G01S13/34 , G01S13/44 , G01S13/66 , G01S13/86 , G01S13/87 , H01L43/08
CPC分类号： G01S13/66 , G01S13/865 , G01S13/87
摘要： A target detector (1) for detecting targets provided with transmitter means (3, 5) for simultaneous generation of different electromagnetic waves having different frequencies which are transmitted by means of an emission and detection device (2). The target detector is also provided with receiving means (3, 4, 5) for obtaining, by means of the emission and detection device (2), target signals comprising target information received at different frequencies. A signal processing unit (15, 16, 17) is provided for processing the target signals in combination to obtain target-representing signals.
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公开(公告)号：US4649395A
公开(公告)日：1987-03-10
申请号：US601524
申请日：1984-04-18
申请人： Bernard Gellekink , Willem A. Hol
发明人： Bernard Gellekink , Willem A. Hol
摘要： A pulse radar apparatus is provided with a coherent transmitting and receiving unit with N juxtaposed receiving antennas and N receivers for the reception of echo signals and the processing thereof into two orthogonally phase-detected and digitized video signal components i.sub.r and q.sub.r, where r=0, 1, 2, . . . , N-1. A beamformer is provided to derive from these components the orthogonal components I.sub.k and Q.sub.k of the video signal determined jointly by the N receivers in accordance with a receiving beam pattern k corresponding with a specific elevation interval, where l=0, 1, 2, . . . ,N-1. The orthogonal components I.sub.n, Q.sub.n and I.sub.n+1, Q.sub.n+1 supplied through two adjoining beamformer output channels n and n+1, and derived from the video signals P.sub.n, P.sub.n+1 from echo signals of maximum amplitude received from moving targets, are used for determining the deviation (.DELTA..alpha.) of the elevation value .alpha., which elevation value corresponds with the center between the receiving beam patterns n and n+1.
摘要翻译： 脉冲雷达装置设有具有N个并置接收天线和N个接收机的相干发射和接收单元，用于接收回波信号，并将其处理成两个正交相位检测和数字化视频信号分量ir和qr，其中r = 0 ，1，2，。 。 。 ，N-1。 提供波束形成器以从这些分量中导出由N个接收机根据与特定高程间隔对应的接收波束图案k联合确定的视频信号的正交分量Ik和Qk，其中l = 0,1,2。 。 。 ，N-1。 通过两个相邻的波束形成器输出通道n和n + 1提供的正交分量In，Qn和In + 1，Qn + 1，并且从从移动目标接收的最大振幅的回波信号从视频信号Pn，Pn + 1导出， 用于确定仰角值α的偏差（DELTA alpha），该高程值对应于接收波束图案n和n + 1之间的中心。
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公开(公告)号：US4622554A
公开(公告)日：1986-11-11
申请号：US569872
申请日：1984-01-11
CPC分类号： F41G3/142 , F41G5/20 , G01S13/5246 , G01S13/68
摘要： A pulse radar apparatus (2) for target (14) tracking is designed to provide angular error data representing the deviations of projectiles, fired from a gun (3) at the target with respect to the target position line. The l.f.-signal processor of said radar apparatus comprises:a. a signal analyzer (17) having a filter bank for determining Doppler spectral components of echo signals received from the fired projectiles within the target range gate (23) and l.f. detected;b. selection means (18) for selecting the projectile Doppler spectral components from the signal analyzer (17) and filter bank; andc. an angular error generator (24) for generating angular error data from the Doppler spectral components selected by the selection means (18) to correct gun aiming values calculated by a fire control computer (9).
摘要翻译： 用于目标（14）跟踪的脉冲雷达装置（2）被设计成提供角度误差数据，其表示相对于目标位置线从靶（3）射出的射弹的偏差。 所述雷达装置的信号处理器包括：a。 信号分析器（17），具有滤波器组，用于确定从目标范围门（23）和l.f内的被发射射弹接收的回波信号的多普勒频谱分量。 检测到 b。 选择装置（18），用于从信号分析器（17）和滤波器组中选择射弹多普勒频谱分量; 和c。 角度误差发生器（24），用于从由选择装置（18）选择的多普勒频谱分量产生角度误差数据，以校正由消防控制计算机（9）计算的枪瞄准值。
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公开(公告)号：US5832855A
公开(公告)日：1998-11-10
申请号：US619611
申请日：1996-03-29
申请人： Bernard Gellekink
发明人： Bernard Gellekink
CPC分类号： B63B1/18 , B63B1/04 , B63B1/40 , B63B43/04 , B63B2043/047 , Y02T70/125
摘要： A ship's hull including a first hull part arranged as a hard-chine-hull disposed on a second hull part in the shape of a super-slender float. During in service conditions, only the aft half of the first hull part intersects the water surface so that two separate bow waves develop. By appropriate selection of hull widths and by disposition of the first hull part on the second hull part, the bow waves are in phase opposition. This reduces the wave-induced drag of the ship's hull considerably, especially near the critical speed.
摘要翻译： PCT No.PCT / EP94 / 03170 Sec。 371日期：1996年3月29日 102（e）1996年3月29日PCT PCT 1994年9月22日PCT公布。 公开号WO95 / 09102 日期1995年4月6日一艘船体包括第一船身部分，其布置为以超细长浮体形式设置在第二船体部分上的硬船体。 在使用条件下，只有第一船体部分的后半部分与水面相交，从而形成两个独立的弓波。 通过适当选择船体宽度和通过在第二船体部分上设置第一船体部分，船首波浪处于相反的方向。 这样可以大大减少船体的波浪引力，特别是在临界速度附近。
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公开(公告)号：US5057845A
公开(公告)日：1991-10-15
申请号：US601591
申请日：1990-10-18
申请人： Bernard Gellekink
发明人： Bernard Gellekink
CPC分类号： G01S13/106 , G01S13/227
摘要： A radar apparatus which employs a pulse train containing an alternating sequence of first and second groups of pulses. The first group comprises a plurality of identical long pulses and the second group comprises a plurality of identical short pulses. The receiver has a single channel, the processing in which is successively adapted for the pulse returns of a group at any one time.
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公开(公告)号：US4743907A
公开(公告)日：1988-05-10
申请号：US860945
申请日：1986-05-05
申请人： Bernard Gellekink
发明人： Bernard Gellekink
CPC分类号： G01S13/87 , G01S13/685
摘要： A radar system for low-level target tracking comprises a first and a second radar apparatus, both apparatus operating at their own frequency, but employing one and the same tracking antenna. A target being tracked in range and angle coordinates by the first radar apparatus can be tracked in angle coordinates by the second apparatus and in range by the first radar apparatus when the target arrives within the range of the second radar apparatus. A preferred digital embodiment of this system is obtained by utilizing a common signal processing unit including a matched filter.
摘要翻译： 用于低级目标跟踪的雷达系统包括第一和第二雷达装置，两个装置以它们自己的频率工作，但采用同一个跟踪天线。 当目标在第二雷达装置的范围内到达时，第一雷达装置在范围和角度坐标上跟踪的目标可以由第二装置以角度坐标跟踪，并且在目标到达第一雷达装置的范围内。 该系统的优选数字实施例通过利用包括匹配滤波器的公共信号处理单元来获得。
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公开(公告)号：US4667200A
公开(公告)日：1987-05-19
申请号：US549943
申请日：1983-11-09
申请人： Bernard Gellekink , Willem A. Hol
发明人： Bernard Gellekink , Willem A. Hol
摘要： A pulse radar apparatus is provided with a coherent transmitting and receiving unit (1) for the transmission of radar pulses, the reception of echo signals, and the conversion of the echo signals into signals of an intermediate frequency f.sub.if, which may be shifted through a Doppler frequency f.sub.d. The echo signals with frequency f.sub.if +f.sub.d are fed to a detector (7) for the coherent phase detection with a frequency f.sub.if +f.sub.c. The detected signals are fed to an analog-to-digital converter (10), which operates at a frequency of approximately 4f.sub.c. The pulse radar apparatus further includes accumulators (12, 13), alternately fed with the output signals of the analog-to-digital converter (10) each time for a given period, after which period the output signals of the accumulators (12, 13) are representative of the orthogonally detected components of the echo signals.
摘要翻译： 脉冲雷达装置设有相干发射和接收单元（1），用于传输雷达脉冲，接收回波信号，以及将回波信号转换成中频15的信号，其可以通过 多普勒频率fd 具有频率为fif + fd的回波信号被馈送到用于相位相位检测的检测器（7），频率为fif + fc。 检测到的信号被馈送到以大约4fc的频率工作的模拟 - 数字转换器（10）。 脉冲雷达装置还包括累积器（12,13），每次在给定时段内交替地馈送模数转换器（10）的输出信号，之后累加器（12,13）的输出信号 ）代表回波信号的正交检测分量。
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