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1.发明授权Process for range measurement with a pulse radar of high pulse repetition frequency 失效具有高脉冲重复频率的脉冲雷达的距离测量过程
公开(公告)号：US4916452A
公开(公告)日：1990-04-10
申请号：US175232
申请日：1988-03-30
申请人： Wolfgang Borchert , Franz Jehle , Hermann Rohling
发明人： Wolfgang Borchert , Franz Jehle , Hermann Rohling
CPC分类号： G01S13/582 , G01S13/24
摘要： With a frequency-agile pulsed doppler radar with high pulse repetition frequency (HPRF) in the unambiguous velocity region, in order to measure the range of a target the complex time signal derived from the echo signals of a coherent processing interval (CPI) is transformed into the frequency domain, the transformed spectrum is multiplied by a bandpass function with a mean frequency coinciding with the doppler frequency of the target, and the product is transformed back into a time signal. The real envelope of this re-transformed time signal displays a definite leading edge and a steady state region, from which the echo travel time can be estimated. Particular advantages may be derived for the pulsed doppler radar set from a plurality of frequency agile transmitter/receivers operated at the same time at different frequencies, and whose frequency switching times are time-staggered.
摘要翻译： 通过在明确的速度区域中具有高脉冲重复频率（HPRF）的频率敏捷脉冲多普勒雷达，为了测量目标的范围，从相干处理间隔（CPI）的回波信号导出的复合时间信号被变换 变换频谱乘以具有与目标的多普勒频率一致的平均频率的带通函数，并将乘积转换回时间信号。 这个重新变换的时间信号的真实包络显示一个确定的前沿和一个稳态区域，从中可以估计回波行进时间。 可以从在不同频率同时操作的多个频率敏捷发射机/接收机的脉冲多普勒雷达组导出特定的优点，并且其频率切换时间是时间交错的。
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公开(公告)号：US4939523A
公开(公告)日：1990-07-03
申请号：US195978
申请日：1988-05-19
申请人： Franz Jehle , Eugen Arnold , Erwin Woelfle
发明人： Franz Jehle , Eugen Arnold , Erwin Woelfle
摘要： In an aircraft on-board radar system employing a sharply focused directional pattern which is able to sweep over a given space range, the range in the MPRF mode is limited primarily by the ground clutter picked up via the side lobes of the antenna pattern. To increase the range, an antenna is employed which, due to asymmetrical distribution of the antenna aperture (signal field) in the elevational direction with respect to the center of the aperture, has a significantly higher side lobe spacing below the principal lobe than above the principal lobe. Because of the side lobe spacing being greater below the principal lobe, less ground clutter components are picked up while the smaller side lobe spacing above the principal lobe results in hardly any increase of clutter components in the echo signal.
摘要翻译： 在使用能够扫过给定空间范围的锐利聚焦方向图的飞行器机载雷达系统中，MPRF模式中的范围主要受到通过天线图案的旁瓣拾取的地面杂波的限制。 为了增加范围，使用天线，由于天线孔径（信号场）相对于孔径的中心在高度方向上的不对称分布，在主波瓣之下具有比上面的更高的旁瓣间隔 主瓣。 由于旁瓣间距大于主瓣，所以拾取较少的地面杂波分量，而主瓣上方较小的旁瓣间距几乎不会导致回波信号中杂波分量的增加。
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公开(公告)号：US4891648A
公开(公告)日：1990-01-02
申请号：US195324
申请日：1988-05-18
申请人： Franz Jehle , Roland Drescher
发明人： Franz Jehle , Roland Drescher
摘要： In an aircraft on-board radar arrangement including a search radar and a radar warning receiving system, an additional receiving branch is provided to which are fed foreign radar signals received by the sharply focused transmit/receive antenna of the search radar, with the output of the additional receiving branch being connected to the radar warning receiver. This results in a greater angular resolution and a considerable increase in range, which again leads to a more detailed and early detected of threatening situations. By using already available components and because of the simple configuration of the additional receiving branch, additional costs remain low.
摘要翻译： 在包括搜索雷达和雷达警报接收系统的飞机机载雷达装置中，提供了另外的接收分支，其馈送由搜索雷达的锐度集中的发射/接收天线接收的外来雷达信号，输出 附加接收分支连接到雷达警告接收器。 这导致更大的角度分辨率和范围的显着增加，这再次导致更详细和早期检测到威胁状况。 通过使用已经可用的组件，并且由于附加接收分支的简单配置，额外的成本仍然很低。
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公开(公告)号：US4695842A
公开(公告)日：1987-09-22
申请号：US748303
申请日：1985-07-30
申请人： Franz Jehle , Holger Meinel
发明人： Franz Jehle , Holger Meinel
CPC分类号： G01S13/87 , G01S13/522 , G01S13/9303 , G01S7/026
摘要： For an aircraft radar arrangement, particularly helicopters, a first frequency is provided at a maximum of atmospheric attenuation and a second frequency near the first frequency in a region of less atmospheric attenuation, preferably at 60 GHz and 50 GHz. The first frequency serves to provide obstacle warnings, the second to provide for moving target detection and navigation. The mm wave components of the arrangement can substantially be used for both frequencies so that significant savings in weight, space and costs result.
摘要翻译： PCT No.PCT / EP84 / 00319 Sec。 371日期：1985年7月30日 102（e）日期1985年7月30日PCT提交1984年10月16日PCT公布。 第WO85 / 01799号公报 1985年4月25日。对于飞机雷达装置，特别是直升机，在较小的大气衰减的区域中，以最大的大气衰减和第一频率附近的第一频率提供第一频率，优选在60GHz和50GHz 。 第一个频率用于提供障碍物警告，第二个频率用于提供移动目标检测和导航。 该布置的mm波分量可以基本上用于两个频率，从而导致重量，空间和成本的显着节省。
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公开(公告)号：US4881077A
公开(公告)日：1989-11-14
申请号：US60106
申请日：1987-06-09
申请人： Franz Jehle , Martin Konig , Erwin Wolfle
发明人： Franz Jehle , Martin Konig , Erwin Wolfle
CPC分类号： G01S7/2813 , G01S13/94 , G01S7/026
摘要： A radar arrangement which is particularly useful for the terrain following radar of an aircraft avoids disturbances from rain echoes by utilizing an antenna arrangement with a transmitting/receving directional antenna which is circularly polarized. A supplementary receiving antenna of orthogonally-circularly polarized type is used in conjunction with the directional antenna. From a comparison of the signal level distinctions is made between a target and a rain echo. The rain echo can thus be suppressed to give a truer target signal.
摘要翻译： 对于飞机跟踪的雷达特别有用的雷达装置通过利用具有圆极化的发射/接收定向天线的天线装置来避免雨回波的干扰。 正交圆偏振型的辅助接收天线与定向天线结合使用。 从信号水平的比较来看，在目标和雨回波之间进行区分。 因此，可以抑制雨回波以给出更真实的目标信号。
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公开(公告)号：US06573861B1
公开(公告)日：2003-06-03
申请号：US07259987
申请日：1988-10-20
申请人： Hans Hommel , Franz Jehle , Martin König , Johnannes Schmid , Dietmar Talke , Erwin Wölfle
发明人： Hans Hommel , Franz Jehle , Martin König , Johnannes Schmid , Dietmar Talke , Erwin Wölfle
IPC分类号： G01S1300
CPC分类号： G01S7/415 , G01S2007/2883
摘要： A target classification method for radar systems wherein, in particular, jet aircraft, are classified in that the blade repetition rate and, in a further step, the number of blades, of an engine rotor wheel are determined and thus the type of engine is identified. Helicopters are classified by determining the blade repetition period of the primary or tail rotor.
摘要翻译： 特别是喷气式飞机的雷达系统的目标分类方法被分类为：确定发动机转子轮的叶片重复率，并且在另一步骤中确定发动机转子轮的叶片数量，因此确定发动机的类型 。 直升机通过确定主转子或尾部转子的叶片重复周期进行分类。
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公开(公告)号：US4719468A
公开(公告)日：1988-01-12
申请号：US732428
申请日：1985-05-09
申请人： Franz Jehle , Jurgen Mutschler
发明人： Franz Jehle , Jurgen Mutschler
CPC分类号： G01S13/282
摘要： In a radar system comprising equipment for transmitting frequency modulated pulses and compressing the received signals in a filter for frequency-dependent weighting, the weighting is asymmetrical in a manner such that the leading sidelobes of the pulse compression signal are reduced and the lagging sidelobes are raised. The reduced leading sidelobes can easily be reduced below an amplitude threshold so that the main echo lobe within the pulse compression signal is reliably acquired for determining the closest target distance. The invention may advantageously be applied to ground tracking radars.
摘要翻译： 在雷达系统中，包括用于发送频率调制脉冲并压缩滤波器中接收到的信号用于频率依赖加权的设备，加权是不对称的，使得脉冲压缩信号的前导旁瓣减小并且滞后旁瓣升高 。 减少的前导旁瓣可以容易地降低到振幅阈值以下，使得可靠地获取脉冲压缩信号内的主回波波，以确定最近的目标距离。 本发明可以有利地应用于地面跟踪雷达。
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公开(公告)号：US4635880A
公开(公告)日：1987-01-13
申请号：US697504
申请日：1985-02-01
申请人： Franz Jehle
发明人： Franz Jehle
摘要： In a remote-control system for guiding a missile from an aircraft which is equipped with jamming transmitters, a radar, and a predictor, radio communication to the missile is established to transmit trajectory instructions through the jamming transmitter equipment. For this purpose, after launching the missile, the jamming transmitter is tuned in a narrow band to the frequency of the radio communication, while interrupting the jamming transmission if necessary, and modulated with the instructions to be transmitted.
摘要翻译： 在用于从配备有干扰发射机，雷达和预测器的飞机引导导弹的遥控系统中，建立到导弹的无线电通信以通过干扰发射机设备发送轨迹指令。 为此，在发射导弹之后，干扰发射机被调谐到无线电通信频率的窄带，同时在必要时中断干扰传输，并根据要发送的指令进行调制。
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