公开(公告)号：US5241318A

公开(公告)日：1993-08-31

申请号：US889920

申请日：1992-05-29

申请人： Dean D. Howard

发明人： Dean D. Howard

IPC分类号： G01S13/42 ,  G01S13/44 ,  G01S13/87

CPC分类号： G01S13/87 ,  G01S13/426 ,  G01S13/44

摘要： The invention relates to an apparatus and method for generating target range, azimuth angle, or elevation angle output signals corresponding to an apparent beam in a multiple-feed monopulse radar system. The multiple-feed monopulse radar system according to the present invention includes a transmitter/receiver unit, an adder/subtracter unit and a video comparator/adder unit. The transmitter/receiver unit is used to generate first and second actual antenna beams. Echoes caused by such actual beams are received and processed to provide first sum and first difference signals and second sum and second difference signals corresponding to the first and second actual beams, respectively. These signals are then supplied to the adder/subtracter unit which adds the first sum and first difference signals to provide a result .SIGMA..sub.1 +K.DELTA..sub.1, subtracts the first sum and first difference signals to provide a result .SIGMA..sub.1 -K.DELTA., adds the second sum and second difference signals to provide a result .SIGMA..sub.2 +K.DELTA..sub.1, and subtracts the second sum and second difference signals to provide a result .SIGMA..sub.2 -K.DELTA..sub.2. These results are supplied to the video comparator/adder unit which generates the sum or difference signals corresponding to the apparent beam. Through the mere addition of a comparator/adder unit to a prior art multiple-feed monopulse radar system, the precision of target range, azimuth angle or elevation angle measurements may be increased dramatically without significantly increasing the size, cost or complexity of the monopulse radar system.

摘要翻译： 本发明涉及一种用于在多馈单脉冲雷达系统中产生对应于视波束的目标范围，方位角或仰角输出信号的装置和方法。 根据本发明的多馈单脉冲雷达系统包括发射机/接收机单元，加法器/减法器单元和视频比较器/加法器单元。 发射机/接收机单元用于产生第一和第二实际天线波束。 接收并处理由这种实际波束引起的回波，以分别提供对应于第一和第二实际波束的第一和和和第一差分信号以及第二和和第二差分信号。 这些信号然后被提供给加法器/减法器单元，加法器/减法器单元将第一和和第一差分信号相加以提供结果SIGMA 1 + K DELTA 1，减去第一和和第一差分信号以提供结果SIGMA 1 -K DELTA， 第二和第二差分信号以提供结果SIGMA 2 + K DELTA 1，并且减去第二和和第二差分信号以提供结果SIGMA 2 -K DELTA 2.这些结果被提供给视频比较器/加法器单元，其中 产生对应于表观波束的和或差信号。 通过仅对现有技术的多馈单脉冲雷达系统添加比较器/加法器单元，可以显着提高目标范围，方位角或仰角测量的精度，而不会显着增加单脉冲雷达的尺寸，成本或复杂性 系统。

公开(公告)号：US4471359A

公开(公告)日：1984-09-11

申请号：US388563

申请日：1982-06-15

申请人： Dean D. Howard

发明人： Dean D. Howard

IPC分类号： H01Q5/00 ,  H01Q5/45 ,  H01Q19/195 ,  H01Q19/06

CPC分类号： H01Q19/195 ,  H01Q5/45

摘要： A dual band mirror antenna employing a continuous mirror without a hole. e-by-side feeds for each band and an electromagnetic lens, located behind a rotatable twist reflector (the mirror), collimate beams toward a pair of polarized reflectors located near the twist reflector and tilted to aim the reflected energy toward the twist reflector. One polarized reflector is reflective at the higher radiofrequency band and transparent at the lower radiofrequency band. The other polarized reflector is reflective at both bands. Energy directed back toward the polarized reflectors from the twist reflector passes through the polarized reflectors to free space.

摘要翻译： 采用不带孔的连续镜的双频带镜面天线。 位于可旋转扭转反射器（反射镜）后面的每个带和电磁透镜的并排馈送将光束朝着位于扭转反射器附近的一对偏振反射器准直，并且将反射能量朝向扭转反射器倾斜。 一个偏振反射器在较高的射频频带是反射性的，在较低的射频频带处是透明的。 另一个偏振反射器在两个波段都是反射的。 从扭转反射镜朝向偏振反射器的能量通过偏振反射器以释放空间。

公开(公告)号：US4504835A

公开(公告)日：1985-03-12

申请号：US389139

申请日：1982-06-15

申请人： Dean D. Howard ,  David C. Cross

发明人： Dean D. Howard ,  David C. Cross

IPC分类号： H01Q3/20 ,  H01Q15/22 ,  H01Q19/185 ,  H01Q19/00

CPC分类号： H01Q3/20 ,  H01Q15/22 ,  H01Q19/185

摘要： A mirror antenna employing a continuous mirror without a hole. A feed hornnd an electromagnetic lens, located behind a rotatable twist reflector (the mirror), collimates a beam toward a polarized reflector located near the twist reflector and tilted to aim energy toward the twist reflector. Energy reflected back toward the polarized reflector from the twist reflector passes through the polarized reflector to free space.

摘要翻译： 采用不带孔的连续镜的镜面天线。 位于可旋转扭转反射器（反射镜）后面的馈电喇叭和电磁透镜将光束准直到位于扭转反射器附近的偏振反射器，并且倾斜以将能量瞄准扭转反射器。 从扭转反射镜反射回偏振反射器的能量通过偏振反射器到自由空间。

公开(公告)号：US4095223A

公开(公告)日：1978-06-13

申请号：US785976

申请日：1977-04-08

申请人： Dean D. Howard

发明人： Dean D. Howard

IPC分类号： G01S7/20 ,  G01S13/44

CPC分类号： G01S7/20 ,  G01S13/4445

摘要： A target indicating system includes a high-range-resolution monopulse radarhich produces four dimensions of data: a range trigger signal, elevation angle error data, azimuth angle error data, and range video data. Additionally included is a display system having an x-y display for presenting the four dimensions of data. The display is improved by the addition of a sweep generator, elevation summary amplifier, and azimuth summing amplifier which cause the trace on the display to be driven diagonally and generate an isometric presentation of the four dimensions of data.

公开(公告)号：US5241317A

公开(公告)日：1993-08-31

申请号：US889806

申请日：1992-05-29

申请人： Dean D. Howard

发明人： Dean D. Howard

IPC分类号： G01S13/44

CPC分类号： G01S13/4418

摘要： The present invention relates to a method and system for determining target elevation angle, altitude and range and the like in a monopulse radar system with reduced multipath errors. A transmitter/receiver unit receives monopulse sum and difference signals caused by echoes from targets. The sum and difference signals are then logarithmically-amplified in a logarithmic amplifier unit. A selector selects one of the sum and difference signals having the largest amplitude, and generates a selection signal indicating which of the sum and difference signals has the largest amplitude. The selection signal is provided to a search radar target tracking unit which determines whether a target at a given range interval and azimuth interval, for example, has been selected for tracking by an operator. The search radar target tracking unit then controls a gate unit to selectively provide either the logarithmically-amplified sum signal or the logarithmically-amplified difference signal to a peak detection unit based on the selection signal, and based on whether a particular target has been selected for tracking. The peak detection unit determines peak value(s) in the logarithmically-amplified sum and difference signals provided by the gate unit. A target elevation angle/altitude calculation unit uses the peak value(s) to determine target elevation angle or altitude values, or average target elevation angle or altitude values. Such values may be displayed on a CRT for in correspondence with the selected target(s).

摘要翻译： 本发明涉及一种具有降低的多路径误差的单脉冲雷达系统中的目标仰角，高度和范围等的方法和系统。 发射机/接收机单元接收来自目标的回波引起的单脉冲和差信号。 然后，对数放大器单元将和差信号对数放大。 选择器选择具有最大振幅的和信号和差分信号中的一个，并产生指示和差和信号中哪一个具有最大振幅的选择信号。 该选择信号被提供给搜索雷达目标跟踪单元，该搜索雷达目标跟踪单元确定例如给定范围间隔的目标和方位区间是否已经被选择以供操作员跟踪。 搜索雷达目标跟踪单元然后控制门单元，以选择性地将基于选择信号的对数放大和信号或对数放大的差分信号提供给峰值检测单元，并且基于是否已经选择了特定目标 跟踪。 峰值检测单元确定由门单元提供的对数放大的和值和差分信号中的峰值（s）。 目标仰角/高度计算单位使用峰值来确定目标仰角或高度值，或平均目标仰角或高度值。 这样的值可以显示在CRT上以与所选择的目标相对应。

公开(公告)号：US4006478A

公开(公告)日：1977-02-01

申请号：US755361

申请日：1958-08-15

申请人： Bernard L. Lewis ,  Dean D. Howard

发明人： Bernard L. Lewis ,  Dean D. Howard

IPC分类号： G01S7/38

CPC分类号： G01S7/38

摘要： 1. In a signal jamming device, first and second transducers physically displaced relative to each other said transducers having substantially identical signal coupling characteristics on the basis of direction to a selected distant object, means for coupling said transducers whereby signals received by one transducer are emitted by the other and vice versa, and differential impedance means connected to said means for coupling for producing phase shift of signals emitted by one transducer relative to signals emitted by the other transducer.

摘要翻译： 在信号干扰装置中，第一和第二换能器相对于彼此物理位移，所述换能器基于与所选远程物体的方向具有基本相同的信号耦合特性，用于耦合所述换能器的装置，由此发射由一个换能器接收的信号 并且反之亦然，以及连接到所述用于耦合的装置的差分阻抗装置，用于产生由一个换能器发射的信号相对于由另一个换能器发射的信号的相移。

公开(公告)号：US3940766A

公开(公告)日：1976-02-24

申请号：US349517

申请日：1973-04-05

申请人： David C. Cross ,  Dean D. Howard

发明人： David C. Cross ,  Dean D. Howard

IPC分类号： G01S7/292 ,  G01S13/44 ,  G01S9/02 ,  G01S9/52

CPC分类号： G01S7/2926 ,  G01S13/4445

摘要： The disclosed invention provides an accurate, simple and flexible method processing the receiver output of a high range resolution monopulse tracking radar to generate range and angle tracking error voltages based on the location of only the leading edge of the target echo replacing the conventional analog range error detectors and angle error processors in closed tracking loop systems. The invention also processes the radar return signal to avoid interference from repeater jammers or multipath returns at low angle tracking.

摘要翻译： 所公开的发明提供了一种用于处理高范围分辨率单脉冲跟踪雷达的接收机输出的精确，简单和灵活的方法，以基于仅替换传统模拟范围的目标回波的前沿的位置来产生范围和角度跟踪误差电压 闭路跟踪系统中的误差检测器和角度误差处理器。 本发明还处理雷达返回信号，以避免来自中继器干扰的干扰或以低角度跟踪的多径返回。

公开(公告)号：US3521282A

公开(公告)日：1970-07-21

申请号：US3521282D

申请日：1959-04-13

申请人： DEAN D HOWARD ,  BERNARD L LEWIS

发明人： HOWARD DEAN D ,  LEWIS BERNARD L

IPC分类号： G01S13/68 ,  G01S9/02 ,  H01Q3/08

CPC分类号： G01S13/68