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公开(公告)号：US10091039B2
公开(公告)日：2018-10-02
申请号：US15458233
申请日：2017-03-14
Applicant: Raytheon Company
Inventor： Benjamin Dolgin , Gary M. Graceffo , Andrew Kowalevicz
Abstract: A phase detection system includes first and second phase mixing circuits in signal communication with a signal phase adjuster module. The first mixing circuit generates a first digital modulated frequency signal based on an input signal and a first reference phase signal. The second mixing circuit generates a second digital modulated frequency signal based on the input signal and a second reference phase signal, which phase shifted with respect to the first reference phase signal. The phase detection system further includes a phase identification (ID) module in signal communication with the first mixing circuit and the second mixing circuit. The phase ID module generates a phase signal based on the first digital modulated frequency signal and the second digital modulated frequency signal. The phase signal indicates a phase of the input signal.
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公开(公告)号：US20170264472A1
公开(公告)日：2017-09-14
申请号：US15458233
申请日：2017-03-14
Applicant: Raytheon Company
Inventor： Benjamin Dolgin , Gary M. Graceffo , Andrew Kowalevicz
CPC classification number: H04L27/20 , H04L5/0048 , H04L27/16
Abstract: A phase detection system includes first and second phase mixing circuits in signal communication with a signal phase adjuster module. The first mixing circuit generates a first digital modulated frequency signal based on an input signal and a first reference phase signal. The second mixing circuit generates a second digital modulated frequency signal based on the input signal and a second reference phase signal, which phase shifted with respect to the first reference phase signal. The phase detection system further includes a phase identification (ID) module in signal communication with the first mixing circuit and the second mixing circuit. The phase ID module generates a phase signal based on the first digital modulated frequency signal and the second digital modulated frequency signal. The phase signal indicates a phase of the input signal.
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公开(公告)号：US20170075020A1
公开(公告)日：2017-03-16
申请号：US14856356
申请日：2015-09-16
Applicant: Raytheon Company
Inventor： Matthew E. Gann , Benjamin Dolgin , James C. Zellner , Ender E. Barillas
CPC classification number: G01V3/16 , G01C21/08 , G01C25/005 , G01D18/004 , G01R33/0029 , G01R33/022 , G01V3/165
Abstract: Technology for performing magnetic field gradient measurements is described. The magnetic field gradient measurements for specific positions on the Earth can be performed from a moving platform. The magnetic field gradient measurements can be identified as being affected by a level of error that exceeds a defined threshold. A correction value can be generated to compensate for the error in the magnetic field gradient measurements. The correction value can be applied to the magnetic field gradient measurements in order to obtain magnetic field gradient measurements with a reduced level of error.
Abstract translation: 描述用于执行磁场梯度测量的技术。 地球上特定位置的磁场梯度测量可以从移动平台进行。 磁场梯度测量可以被识别为受超过定义阈值的误差水平的影响。 可以产生校正值以补偿磁场梯度测量中的误差。 可以将校正值应用于磁场梯度测量，以便以降低的误差水平获得磁场梯度测量。
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公开(公告)号：US20170074660A1
公开(公告)日：2017-03-16
申请号：US14856323
申请日：2015-09-16
Applicant: Raytheon Company
Inventor： Matthew E. Gann , Garabed P. Hagopian , James C. Zellner , Benjamin Dolgin , Ender E. Barillas
CPC classification number: G01C21/08 , B64D43/00 , F41G7/008 , G01C21/165 , G01C21/18 , G01C21/20 , G01R33/022 , G01S19/48
Abstract: Technology for determining a geographical location is described. A sequence of magnetic field gradient measurements can be identified for specific positions on the Earth that correspond to a path traveled by a moving platform. The sequence of magnetic field gradient measurements for the path can be compared to a reference magnetic field gradient map. A trajectory derived from the reference magnetic field gradient map that correlates to the sequence of magnetic field gradient measurements can be identified. The trajectory can have known geographical coordinates. The geographical location of the moving platform can be determined based on the known geographical coordinates of the trajectory.
Abstract translation: 描述了确定地理位置的技术。 可以对地球上与移动平台行进的路径相对应的特定位置识别一系列磁场梯度测量。 可以将路径的磁场梯度测量序列与参考磁场梯度图进行比较。 可以确定从与磁场梯度测量序列相关的参考磁场梯度图导出的轨迹。 轨迹可以具有已知的地理坐标。 移动平台的地理位置可以基于已知的轨迹地理坐标来确定。
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公开(公告)号：US20150198701A1
公开(公告)日：2015-07-16
申请号：US14592516
申请日：2015-01-08
Applicant: RAYTHEON COMPANY
Inventor： Benjamin Dolgin
CPC classification number: G01S13/66 , G01S13/42 , G01S13/4463 , G01S2013/0254
Abstract: A phased array radar configured to transmit two or more slightly misaligned beams, for improved angular resolution. The transmitting array is split into two or more subarrays that transmit slightly misaligned beams that may have a common carrier frequency and each of which has a different modulation. Each subarray may include alternate elements in the rows of the transmitting array, and alternate elements in the columns of the transmitting array. The width of each transmitted beam may be greater than or comparable to the diffraction-limited width, but the region in which the beams overlap may be significantly narrower than any of the transmitted beams. The reflected beam from a target contains one or more of the modulations of the transmitted beams, in proportions depending on the location of the target, and the extent to which it is illuminated by each beam. The receiving array is phased to maximize the signal from the region in which the beams overlap.
Abstract translation: 相控阵雷达被配置为传输两个或更多个稍微不对准的波束，以改善角分辨率。 发射阵列被分成两个或更多个子阵列，其传输略微不对准的波束，其可以具有公共载波频率，并且每个具有不同的调制。 每个子阵列可以包括发射阵列的行中的替代元件以及发射阵列的列中的替代元件。 每个透射光束的宽度可以大于或相当于衍射受限宽度，但是光束重叠的区域可能明显比任何发射光束窄。 来自目标的反射光束包含透射光束的一个或多个调制，其比例取决于目标的位置，以及由每个光束照射的程度。 接收阵列被定相以使来自波束重叠的区域的信号最大化。
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Patent Agency Ranking
公开(公告)号：US11460599B2
公开(公告)日：2022-10-04
申请号：US16664755
申请日：2019-10-25
Applicant: RAYTHEON COMPANY
Inventor： William Martin Ray , Joseph J. Fraundorfer , Benjamin Dolgin
Abstract: A noise cancelling gradiometer probe includes an insulating material having a first side and a second side; a first, second, third and fourth coaxial cables forming a first, second, third and fourth loops, respectively, where a portion of each of the first, second, third and fourth loops is locating on the first side of the insulating material and a portion of the first, second, third and fourth loops is locating on the second side of the insulating material.
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公开(公告)号：US10378900B2
公开(公告)日：2019-08-13
申请号：US14856323
申请日：2015-09-16
Applicant: Raytheon Company
Inventor： Matthew E. Gann , Garabed P. Hagopian , James C. Zellner , Benjamin Dolgin , Ender E. Barillas
Abstract: Technology for determining a geographical location is described. A sequence of magnetic field gradient measurements can be identified for specific positions on the Earth that correspond to a path traveled by a moving platform. The sequence of magnetic field gradient measurements for the path can be compared to a reference magnetic field gradient map. A trajectory derived from the reference magnetic field gradient map that correlates to the sequence of magnetic field gradient measurements can be identified. The trajectory can have known geographical coordinates. The geographical location of the moving platform can be determined based on the known geographical coordinates of the trajectory.
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公开(公告)号：US09755765B2
公开(公告)日：2017-09-05
申请号：US14311558
申请日：2014-06-23
Applicant: Raytheon Company
Inventor： Benjamin Dolgin , Steven Cotten , James C. Zellner
CPC classification number: H04B13/02 , H01Q7/06 , H01Q7/08 , H04B5/0081 , Y10T29/4902
Abstract: A communication system and a method of fabricating a communication system are described. The communication system includes a transmit antenna including two or more symmetric coils wound around a closed-loop magnetic transmitter core, the transmit antenna configured to transmit an outgoing signal of very low frequency (VLF) or ultra low frequency (ULF) energy. The communication system also includes a receive antenna including two or more coils formed from two or more wires wound around a closed-loop magnetic receiver core, the receive antenna configured to receive transmitted VLF or ULF energy as an incoming signal. The communication system also includes a processor to process the outgoing signal and the incoming signal.
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公开(公告)号：US20160178729A1
公开(公告)日：2016-06-23
申请号：US14592528
申请日：2015-01-08
Applicant: RAYTHEON COMPANY
Inventor： Benjamin Dolgin
CPC classification number: G01S7/03 , G01S7/292 , G01S13/42 , G01S13/48 , G01S2013/0254 , G01S2013/029
Abstract: A radar system for detecting stealth vehicles, e.g., stealth aircraft. Relatively long-wavelength very high frequency (VHF) or ultra high frequency (UHF) radar radiation is used to reduce the ability of the stealth vehicle to direct the reflected radar radiation away from the radar receiver. The radar is operated with two or more transmitting beams. The beams are separately modulated and misaligned relative to each other. When the stealth vehicle is nearer to a first beam than to a second beam of the transmitting beams, the vehicle reflects more of the first beam radar radiation, and more of the corresponding modulation, back toward the receiver. The receiver measures the magnitudes of the modulations in the reflected radar radiation and infers, from the difference between these magnitudes, the direction to the stealth vehicle.
Abstract translation: 用于检测隐形车辆的雷达系统，例如隐形飞机。 使用相对长波长的非常高频（VHF）或超高频（UHF）雷达辐射来降低隐形车辆将反射雷达辐射远离雷达接收器的能力。 雷达使用两个或更多个发射光束进行操作。 光束被分别调制并相对于彼此不对准。 当隐形车辆比发射波束的第二波束更靠近第一波束时，车辆将更多的第一波束雷达辐射和更多的相应调制反射回接收机。 接收机测量反射雷达辐射中的调制幅度，并从这些幅度之间的差异到隐形车辆的方向。
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公开(公告)号：US20160170030A1
公开(公告)日：2016-06-16
申请号：US14567697
申请日：2014-12-11
Applicant: Raytheon Company
Inventor： Benjamin Dolgin , Sarah E. Law , Joanne M. Attridge , Preethi Pratap , David C. Fisher
CPC classification number: G01S19/41 , G01C21/165 , G01S3/46 , G01S19/49
Abstract: Technology for measuring orientation is described. Signals can be received from a signal source having a known location via at least two antennas of the interferometer that are separated by a predefined distance. A delay between receiving the signals from the signal source at the at least two antennas of the interferometer can be calculated. A line of bearing (LOB) of the interferometer with respect to the signal source can be determined based on the delay between receiving the signals at the at least two antennas from the signal source. The orientation of the interferometer can be measured in a global coordinate system using the LOB of the interferometer with respect to the signal source.
Abstract translation: 描述用于测量取向的技术。 信号可以通过干涉仪的至少两个天线被隔离预定距离的具有已知位置的信号源接收。 可以计算在干涉仪的至少两个天线处从信号源接收信号之间的延迟。 干涉仪相对于信号源的轴承（LOB）可以基于从信号源接收至少两个天线之间的信号之间的延迟来确定。 可以使用干涉仪的LOB相对于信号源在全局坐标系中测量干涉仪的取向。
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