公开(公告)号：US20110285582A1

公开(公告)日：2011-11-24

申请号：US12947523

申请日：2010-11-16

Applicant: Guifu Zhang ,  Robert D. Palmer ,  Dusan S. Zmic ,  Richard J. Dovisk

Inventor： Guifu Zhang ,  Robert D. Palmer ,  Dusan S. Zmic ,  Richard J. Dovisk

IPC: G01S13/95 ,  G01S13/00 ,  H01Q3/00

CPC classification number: G01S13/95 ,  G01S7/024 ,  G01S2013/0245 ,  G01S2013/0272 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q21/205 ,  Y02A90/18

Abstract: A radar data acquisition system including a polarimetric phased array antenna and a radar control and processing system. The polarimetric phased array antenna includes a support system, an array of panels and a switching network. One or more of the panels include a dual pole antenna for at least one of transmitting and receiving a dual polarization electromagnetic beam. The switching network communicates with the panels such that at least one of power, radar and control signals are sent to and received from one or more selected panels. The radar control and processing system communicates with the switching network for forming electromagnetic signals directed to one or more selected panels such that the selected panels form a dual polarization electromagnetic beam, and for reading signals sensed by one or more selected panels and for decoding the signals into an electronic radar output.

Abstract translation: 雷达数据采集系统包括极化相控阵天线和雷达控制和处理系统。 极化相控阵天线包括支撑系统，面板阵列和交换网络。 一个或多个面板包括用于发送和接收双极化电磁束中的至少一个的双极天线。 交换网络与面板通信，使得功率，雷达和控制信号中的至少一个被发送到一个或多个所选面板并从一个或多个所选面板接收。 雷达控制和处理系统与切换网络通信，用于形成指向一个或多个所选择的面板的电磁信号，使得所选择的面板形成双极化电磁束，并且用于读取由一个或多个所选择的面板感测并用于解码信号 成为电子雷达输出。

公开(公告)号：US20110234453A1

公开(公告)日：2011-09-29

申请号：US13013189

申请日：2011-01-25

Applicant: Fumihiko MIZUTANI ,  Masakazu Wada

Inventor： Fumihiko MIZUTANI ,  Masakazu Wada

IPC: G01S13/95

CPC classification number: G01S13/95 ,  G01S13/426 ,  G01S2013/0245 ,  Y02A90/18

Abstract: According to one embodiment, a weather radar apparatus includes an antenna unit, a drive unit, an adjustment unit, and a control unit. The antenna unit is configured to transmit radio waves from a plurality of antenna elements, perform beam scan in a direction of elevation angle by phase control, and receive waves reflected by a weather target. The drive unit is configured to drive an elevation angle and an azimuth angle of an aperture plane of the antenna unit. The adjustment unit is configured to adjust an observation range and an observation elevation angle by the antenna unit and the drive unit in accordance with a plurality of observation modes. The control unit is configured to set the observation mode based on a received signal of the reflected waves.

Abstract translation: 根据一个实施例，天气雷达装置包括天线单元，驱动单元，调整单元和控制单元。 天线单元被配置为从多个天线元件发送无线电波，通过相位控制在仰角的方向上执行波束扫描，并且接收由天气目标反射的波。 驱动单元被配置为驱动天线单元的孔径平面的仰角和方位角。 调整单元被配置为根据多个观察模式通过天线单元和驱动单元来调整观察范围和观察仰角。 控制单元被配置为基于反射波的接收信号设置观察模式。

公开(公告)号：US07825853B2

公开(公告)日：2010-11-02

申请号：US11774842

申请日：2007-07-09

Applicant: Steven E. Bruce ,  Thomas A. Wilson

Inventor： Steven E. Bruce ,  Thomas A. Wilson

IPC: G01S7/02 ,  H01Q1/12 ,  G01S13/00

CPC classification number: G01S7/02 ,  G01S13/4463 ,  G01S13/48 ,  G01S2013/0245 ,  H01Q1/1235 ,  H01Q1/273 ,  H01Q21/205

Abstract: The present invention is a man-portable counter-mortar radar (MCMR) radar system that detects and tracks enemy mortar projectiles in flight and calculates their point of origin (launch point) to enable and direct countermeasures against the mortar and its personnel. In addition, MCMR may also perform air defense surveillance by detecting and tracking aircraft, helicopters, and ground vehicles. MCMR is a man-portable radar system that can be disassembled for transport, then quickly assembled in the field, and provides 360-degree coverage against an enemy mortar attack. MCMR comprises an antenna for radiating the radar pulses and for receiving the reflected target echoes, a transmitter that produces the radar pulses to be radiated from the antenna, a receiver-processor for performing measurements (range, azimuth and elevation) on the target echoes, associating multiple echoes to create target tracks, classifying the tracks as mortar projectiles, and calculating the probable location of the mortar weapon, and a control and display computer that permits the operation of the radar and the display and interpretation of the processed radar data.

Abstract translation: 本发明是一种便携式反砂雷达（MCMR）雷达系统，用于检测和跟踪飞行中的敌人迫击炮弹，并计算其起点（发射点），以便对迫击炮及其人员施加对​​策。 此外，MCMR还可以通过检测和跟踪飞机，直升机和地面车辆进行防空监视。 MCMR是一种便携式雷达系统，可以拆卸运输，然后在现场快速组装，并提供360度的覆盖面，防止敌人的迫击炮攻击。 MCMR包括用于辐射雷达脉冲并用于接收反射的目标回波的天线，产生要从天线辐射的雷达脉冲的发射机，用于在目标回波上执行测量（范围，方位角和仰角）的接收机处理器， 将多个回波相关联以创建目标轨道，将轨道分类为迫击炮弹，以及计算迫击炮武器的可能位置;以及控制和显示计算机，其允许雷达的操作以及所处理的雷达数据的显示和解释。

公开(公告)号：US07719460B1

公开(公告)日：2010-05-18

申请号：US12424850

申请日：2009-04-16

Applicant: Kado Nakagawa

Inventor： Kado Nakagawa

IPC: G01S13/42

CPC classification number: G01S3/74 ,  G01S13/584 ,  G01S2013/0245

Abstract: In a radar device including a transmitting unit for transmitting a transmission signal having plural modulation sections, a receiving unit for receiving a reflection signal obtained through reflection of the transmission signal from a target by an array antenna having plural channels, a mixing unit for mixing the transmission signal with reception signals of the plural channels to obtain beat signals of the plural channels, a frequency analyzing unit for frequency-analyzing the beat signals of the plural channels, and a direction calculating unit for calculating the direction to the target on the basis of frequency analysis results of the plural channels, the direction calculating unit adds correlation matrixes generated from peak frequency spectra of the plural modulation sections to obtain an summed correlation matrix, and calculating the direction to the target on the basis of the summed correlation matrix.

Abstract translation: 在包括用于发送具有多个调制部分的发送信号的发送单元的雷达装置中，接收单元，用于接收通过具有多个通道的阵列天线反射来自目标的发送信号而获得的反射信号;混合单元， 具有多个信道的接收信号的发送信号，以获得多个信道的节拍信号;频率分析单元，用于频率分析多个频道的节拍信号;以及方向计算单元，用于基于 多个频道的频率分析结果，方向计算单元将从多个调制部分的峰值频谱生成的相关矩阵相加，以获得相加的相关矩阵，并根据求和的相关矩阵计算到目标的方向。

公开(公告)号：US20090278732A1

公开(公告)日：2009-11-12

申请号：US12456269

申请日：2009-06-05

Applicant: Paul Antonik ,  Michael C. Wicks

Inventor： Paul Antonik ,  Michael C. Wicks

IPC: G01S13/90

CPC classification number: G01S13/9029 ,  G01S7/282 ,  G01S7/288 ,  G01S13/28 ,  G01S2013/0245

Abstract: Method and apparatus for simultaneous synthetic aperture radar and moving target detection. A plurality of independent radio frequency signals are generated and applied to separate radiating/receiving antenna elements. Signals are generated as basis functions, such that moving target detection and synthetic aperture radar signals are constructed from individual waveform components in space, time, frequency, and coding. Waveform components are sorted and combined at reception. Received data is simultaneously processed to extract synthetic aperture radar images and moving target indication detections.

Abstract translation: 用于同时合成孔径雷达和移动目标检测的方法和装置。 生成多个独立的射频信号并将其应用于单独的辐射/接收天线元件。 生成信号作为基本功能，使得移动目标检测和合成孔径雷达信号由空间，时间，频率和编码中的各个波形分量构成。 波形组件在接收时进行排序和组合。 接收的数据被同时处理，以提取合成孔径雷达图像和移动目标指示检测。

公开(公告)号：US07486230B2

公开(公告)日：2009-02-03

申请号：US11605993

申请日：2006-11-29

Applicant: Gaku Takano ,  Chiharu Yamano ,  Kazuma Natsume ,  Yasuyuki Miyake

Inventor： Gaku Takano ,  Chiharu Yamano ,  Kazuma Natsume ,  Yasuyuki Miyake

IPC: G01S7/02 ,  G01S13/93

CPC classification number: G01S13/931 ,  G01S3/74 ,  G01S13/42 ,  G01S2013/0245

Abstract: A radar signal processor has observation means for outputting a predetermined observation signal from a reflected wave, means for extracting an observation signal component concerning a target from the observation signal, means for computing a sample correlation matrix showing a correlation characteristic between the observation means from the observation signal components, means for estimating power of the reflected wave from the sample correlation matrix, and an array response matrix which is comprised of response vectors of the reflected waves. When estimating the power, an adjacent azimuth array response matrix having only the reflected waves of a predetermined arrival direction which power is to be estimated and the reflected waves of an azimuth adjacent to the reflected wave as elements is determined so as to estimate the power of the reflected wave.

Abstract translation: 雷达信号处理器具有用于从反射波输出预定观测信号的观测装置，用于从观测信号中提取关于目标的观测信号分量的装置，用于计算示出来自所述观测装置的观测装置之间的相关特性的样本相关矩阵的装置 观测信号分量，用于从样本相关矩阵估计反射波的功率的装置，以及由反射波的响应矢量组成的阵列响应矩阵。 当估计功率时，确定仅具有将被估计功率的预定到达方向的反射波和与反射波相邻的方位角的反射波作为元件的相邻方位阵列响应矩阵，以便估计功率 反射波。

公开(公告)号：US07474262B2

公开(公告)日：2009-01-06

申请号：US11172684

申请日：2005-07-01

Applicant: Stephen W. Alland

Inventor： Stephen W. Alland

IPC: H01Q3/38

CPC classification number: G01S13/52 ,  G01S7/288 ,  G01S7/352 ,  G01S13/931 ,  G01S2007/356 ,  G01S2007/358 ,  G01S2013/0245 ,  G01S2013/9314 ,  G01S2013/9325 ,  G01S2013/9346 ,  G01S2013/935 ,  H01Q21/0006 ,  H04B7/01

Abstract: Digital beamforming is provided for use with electronically scanned radar. In an aspect, the present invention provides enhanced sensitivity, wide angle or field of view (FOV) coverage with narrow beams, minimized number of receivers, reduced sidelobes, eliminated grating lobes and beam compensation for target motion. In an aspect, the present invention employs a uniform overlapped subarray feed network, a time multiplexed switch matrix, and a restructured digital signal processor. Antenna channels share a receiver, rather than maintain a dedicated receiver for each antenna element, as in conventional systems. In an aspect, Doppler/frequency filtering is performed on each antenna element or subarray output prior to digital beamforming. Further, Doppler compensation is employed following Doppler/frequency filtering, followed by digital beamforming.

Abstract translation: 提供数字波束成形用于电子扫描雷达。 一方面，本发明提供了增强的灵敏度，具有窄光束的广角或视场（FOV）覆盖，最小数量的接收器，减少的旁瓣，消除的光栅和针对目标运动的光束补偿。 在一方面，本发明采用均匀的重叠子阵列馈电网络，时间复用开关矩阵和重构的数字信号处理器。 天线信道共享接收机，而不是如常规系统那样维护每个天线元件的专用接收机。 在一个方面，在数字波束形成之前对每个天线元件或子阵列输出执行多普勒/频率滤波。 此外，在多普勒/频率滤波之后采用多普勒补偿，随后进行数字波束成形。

公开(公告)号：US20080191927A1

公开(公告)日：2008-08-14

申请号：US11914090

申请日：2005-05-09

Applicant: Jehezkel Grizim ,  Alexander Lomes ,  Yacob Wagman ,  Shmuel Ron ,  Haim Richman ,  Abraham Reich ,  David Rabia

Inventor： Jehezkel Grizim ,  Alexander Lomes ,  Yacob Wagman ,  Shmuel Ron ,  Haim Richman ,  Abraham Reich ,  David Rabia

IPC: G01S13/87 ,  H01Q1/42

CPC classification number: G01S7/023 ,  G01S13/426 ,  G01S13/87 ,  G01S2013/0245 ,  H01Q1/28 ,  H01Q3/26

Abstract: A phased array radar antenna includes at least two antennas (11, 12, 13, 14) adapted for simultaneous operation at different non-mutually interfering frequencies. The phased array radar antenna may be fitted to an aircraft having a fuselage supporting first and second radar side antennas (11, 12) on opposite sides thereof, a nose portion supporting a first radar end antenna (13), and a tail portion supporting a second radar end antenna (14). Respective radomes cover the first and second radar end antennas so as to provide a smooth aerodynamic contour, and a radar control unit (15) is disposed within the fuselage and coupled to the first and second radar side antennas and to the first and second radar end antennas for operating the first or second radar side antenna simultaneously with the first or second radar end antenna at respective first and second different frequencies.

Abstract translation: 相控阵雷达天线包括适于在不同的非相互干扰的频率下同时操作的至少两个天线（11,12,13,14）。 相控阵雷达天线可以安装在具有在其相对侧上支撑第一和第二雷达侧天线（11,12）的机身的飞机上，支撑第一雷达端天线（13）的前端部分和支撑 第二雷达端天线（14）。 相应的天线罩覆盖第一和第二雷达端天线以提供平滑的空气动力学轮廓，并且雷达控制单元（15）设置在机身内并且耦合到第一和第二雷达侧天线以及第一和第二雷达端 用于在第一和第二不同频率处与第一或第二雷达端天线同时操作第一或第二雷达侧天线的天线。

公开(公告)号：US07315276B1

公开(公告)日：2008-01-01

申请号：US11176549

申请日：2005-07-07

Applicant: August W. Rihaczek ,  Richard L. Mitchell

Inventor： August W. Rihaczek ,  Richard L. Mitchell

IPC: G01S13/42 ,  H01Q3/30

CPC classification number: H01Q21/061 ,  G01S13/426 ,  G01S2013/0245 ,  H01Q3/30 ,  H01Q21/20

Abstract: A concept is described for broadening the beam of a phased array radar antenna to provide continuous illumination of all radar targets within the search space, and this beam is compressed upon reception to realize the angular resolution that is possible with the antenna. The process is analogous to pulse compression. The advantages of the long dwell times provided by this concept include superior clutter suppression performance, more accurate tracking of targets, and the ability to analyze the target returns for reliable discrimination, classification and identification. The broad beam also reduces the power seen by an intercept receiver, for increased covert operation. This is all accomplished without any sacrifice in power. Various embodiments are disclosed.

Abstract translation: 描述了用于拓宽相控阵雷达天线的波束以提供搜索空间内所有雷达目标的连续照明的概念，并且该波束在接收时被压缩以实现天线可能的角度分辨率。 该过程类似于脉冲压缩。 该概念提供的长停留时间的优点包括优异的杂波抑制性能，更精确的目标跟踪，以及分析目标回报的可靠辨别，分类和识别能力。 宽波束还降低了拦截接收机所看到的功率，以增加隐蔽操作。 这一切都是在没有任何牺牲力的情况下完成的。 公开了各种实施例。

公开(公告)号：US07295154B2

公开(公告)日：2007-11-13

申请号：US10968472

申请日：2004-10-19

Applicant: Eric K. Walton ,  Chi-Chih Chen

Inventor： Eric K. Walton ,  Chi-Chih Chen

IPC: G01S13/93 ,  G01S10/04

CPC classification number: G01S7/352 ,  G01S3/48 ,  G01S5/04 ,  G01S13/003 ,  G01S13/32 ,  G01S13/46 ,  G01S13/931 ,  G01S2007/358 ,  G01S2007/4086 ,  G01S2013/0245 ,  G01S2013/0254 ,  G01S2013/9332 ,  G01S2013/9375 ,  G01S2013/9385 ,  G01S2013/9389 ,  H01Q1/3233 ,  H01Q1/3283 ,  H01Q9/0407 ,  H01Q21/08 ,  H01Q23/00

Abstract: A method for detecting an object using a transmitting antenna and an array of receiving antennas. The method comprises the step of transmitting a signal from the transmitting antenna. The magnitude and phase of a respective received signal at each of the receiving antennas is then measured. Next, the magnitude of a weighted sum of respective phase-compensated signals related to each of the receiving antennas is determined. The magnitude of the weighted sum is compared against a first predetermined threshold value and, optionally, a second predetermined threshold value. An object may be detected by considering a ratio of the magnitude of the weighted sum to the first predetermined threshold value and, optionally, to the second predetermined threshold value. In some embodiments, a second array of receiving antennas may be provided to facilitate the determination of the location of the object.

Abstract translation: 一种使用发射天线和接收天线阵列来检测物体的方法。 该方法包括从发送天线发送信号的步骤。 然后测量每个接收天线处的相应接收信号的幅度和相位。 接下来，确定与每个接收天线相关的各个相位补偿信号的加权和的大小。 将加权和的大小与第一预定阈值和可选地第二预定阈值进行比较。 可以通过考虑加权和的大小与第一预定阈值和可选地到第二预定阈值的比率来检测对象。 在一些实施例中，可以提供第二接收天线阵列以便于确定对象的位置。