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1.发明授权Analog signal processing method for accurate single antenna direction finding 有权用于精确单天线方向测量的模拟信号处理方法公开(公告)号：US09588213B2
公开(公告)日：2017-03-07
申请号：US14182505
申请日：2014-02-18
Applicant: Raytheon Company
Inventor： Harry Marr , Walter B. Schulte, Jr. , John P. Gianvittorio
Abstract: Embodiments are directed to receiving an incoming signal, converting, by an analog circuit, the signal to a discrete time signal, applying, by the analog circuit, a transformation algorithm to the discrete time signal to obtain frequency samples of the discrete time signal, applying, by the analog circuit, a cross correlation algorithm to the frequency samples to obtain a cross spectral density (CSD), detecting, by the analog circuit, phase slopes associated with the CSD, and calculating an angle of arrival (AoA) of the incoming signal based on the phase slopes.
Abstract translation: 实施例旨在接收输入信号，通过模拟电路将信号转换为离散时间信号，由模拟电路将变换算法应用于离散时间信号，以获得离散时间信号的频率采样，应用 通过模拟电路，对频率样本进行交叉相关算法以获得交叉频谱密度（CSD），由模拟电路检测与CSD相关联的相位斜率，并计算输入的到达角（AoA） 信号基于相位斜率。
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公开(公告)号：US10714828B2
公开(公告)日：2020-07-14
申请号：US15444175
申请日：2017-02-27
Applicant: RAYTHEON COMPANY
Inventor： Samuel E. Parker , John P. Gianvittorio
Abstract: A system for transmitting and receiving electromagnetic waves simultaneously. A portion of a signal to be transmitted through a transmitting antenna element is diverted from a transmit signal path, processed by an adjustable filter, and coupled into receive signal path. The adjustable filter is adjusted to approximate the channel that the leakage signals go through to get from the transmitter to the receiver so that the signal coupled into the receiving path through the filter partially cancels the parasitic leakage from the transmit signal path to the receive signal path.
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公开(公告)号：US10693564B2
公开(公告)日：2020-06-23
申请号：US16151705
申请日：2018-10-04
Applicant: Raytheon Company
Inventor： John P. Gianvittorio , Larry C. Martin
IPC: H04B10/70 , H04B10/69 , H04B10/516
Abstract: An apparatus for performing interference cancellation is disclosed, comprising: a first electro-optic (EO) modulator configured to modulate a received RF signal onto a first optical carrier signal to generate a first modulated signal; a plurality of base signal sources configured to generate a plurality of base signals; an optical combiner coupled to the plurality of base signal sources, the optical combiner being configured to combine the base signals into a second optical carrier signal; a second EO modulator configured to modulate a reference signal onto the second optical carrier signal to generate a second modulated signal; and a subtraction element that is coupled to the first EO modulator and the refractive element, the subtraction element being configured to subtract the tapped delay line signal from the first modulated signal to generate an output signal.
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公开(公告)号：US20180248261A1
公开(公告)日：2018-08-30
申请号：US15444175
申请日：2017-02-27
Applicant: RAYTHEON COMPANY
Inventor： Samuel E. Parker , John P. Gianvittorio
Abstract: A system for transmitting and receiving electromagnetic waves simultaneously. A portion of a signal to be transmitted through a transmitting antenna element is diverted from a transmit signal path, processed by an adjustable filter, and coupled into receive signal path. The adjustable filter is adjusted to approximate the channel that the leakage signals go through to get from the transmitter to the receiver so that the signal coupled into the receiving path through the filter partially cancels the parasitic leakage from the transmit signal path to the receive signal path.
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公开(公告)号：US20180106884A1
公开(公告)日：2018-04-19
申请号：US15295084
申请日：2016-10-17
Applicant: RAYTHEON COMPANY
Inventor： Harry B. Marr , John P. Gianvittorio , Jeffrey Caldwell , Samuel E. Parker , John Cangeme
IPC: G01S7/35
Abstract: Method and apparatus for leakage signal cancellation in a simultaneous transmit and receive RF system includes: generating a digital transmit signal for transmission from the system; receiving a receive signal produced by reflection of the transmit signal from an object or generated by a second RF system; adaptively filtering the transmit signal by an adaptive finite input response (FIR) filter; calculating filter coefficients for the adaptive FIR filter in real-time at a different sampling rate; adaptively inputting the calculated filter coefficients to the adaptive FIR filter to generate a cancellation signal in real-time; and applying the cancellation signal to the receive signal to cancel leakage in the receive signal to generate an optimum receive signal.
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Patent Agency Ranking
6.发明申请ANALOG SIGNAL PROCESSING METHOD FOR ACCURATE SINGLE ANTENNA DIRECTION FINDING 有权用于精确单向天线方向寻找的模拟信号处理方法公开(公告)号：US20150234030A1
公开(公告)日：2015-08-20
申请号：US14182505
申请日：2014-02-18
Applicant: Raytheon Company
Inventor： Harry Marr , Walter B. Schulte, JR. , John P. Gianvittorio
IPC: G01S3/14
Abstract: Embodiments are directed to receiving an incoming signal, converting, by an analog circuit, the signal to a discrete time signal, applying, by the analog circuit, a transformation algorithm to the discrete time signal to obtain frequency samples of the discrete time signal, applying, by the analog circuit, a cross correlation algorithm to the frequency samples to obtain a cross spectral density (CSD), detecting, by the analog circuit, phase slopes associated with the CSD, and calculating an angle of arrival (AoA) of the incoming signal based on the phase slopes.
Abstract translation: 实施例旨在接收输入信号，通过模拟电路将信号转换为离散时间信号，由模拟电路将变换算法应用于离散时间信号，以获得离散时间信号的频率采样，应用 通过模拟电路，对频率样本进行交叉相关算法以获得交叉频谱密度（CSD），由模拟电路检测与CSD相关联的相位斜率，并计算输入的到达角（AoA） 信号基于相位斜率。
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公开(公告)号：US11183770B2
公开(公告)日：2021-11-23
申请号：US16415821
申请日：2019-05-17
Applicant: Raytheon Company
Inventor： Benn Gleason , Sean D. Keller , Gerald P. Uyeno , John P. Gianvittorio , Larry C. Martin
Abstract: An RF antenna feed module uses an optical feed network and photo-detectors to generate RF feed signals to drive a dual polarization RF antenna to produce an RF beam with a variable polarization state. The optical feed network and suitably the photo-detectors are monolithically fabricated PIC. Multiple modules may be configured to drive a dual polarization RF phased array. A single feed module can produce RF feed signals over a frequency range of at least 300 GHz.
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公开(公告)号：US20200112377A1
公开(公告)日：2020-04-09
申请号：US16151705
申请日：2018-10-04
Applicant: Raytheon Company
Inventor： John P. Gianvittorio , Larry C. Martin
IPC: H04B10/70 , H04B10/516 , H04B10/69
Abstract: An apparatus for performing interference cancellation is disclosed, comprising: a first electro-optic (EO) modulator configured to modulate a received RF signal onto a first optical carrier signal to generate a first modulated signal; a plurality of base signal sources configured to generate a plurality of base signals; an optical combiner coupled to the plurality of base signal sources, the optical combiner being configured to combine the base signals into a second optical carrier signal; a second EO modulator configured to modulate a reference signal onto the second optical carrier signal to generate a second modulated signal; and a subtraction element that is coupled to the first EO modulator and the refractive element, the subtraction element being configured to subtract the tapped delay line signal from the first modulated signal to generate an output signal.
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公开(公告)号：US09590760B2
公开(公告)日：2017-03-07
申请号：US14294783
申请日：2014-06-03
Applicant: Raytheon Company
Inventor： Walter B. Schulte, Jr. , John P. Gianvittorio , Harry B. Marr
CPC classification number: H04K3/42 , G01S7/38 , H04L7/0025 , H04L27/2627 , H04L27/34
Abstract: An electronic analog memory system includes at least one analog programmable delay module configured to receive an input radio frequency pulse. The analog programmable delay module generates a time delayed output signal in response to applying at least one time delay to the input radio frequency pulse. A switching module is configured to selectively deliver the time delayed output signal to an output of the electronic analog memory system. The electronic analog memory system further includes an activity detector module configured to determine the amplitude of the input radio frequency pulse. The activity detector module also controls the switching module to deliver the time delayed output signal to the output in response to the at least one amplitude exceeding an amplitude threshold.
Abstract translation: 电子模拟存储器系统包括被配置为接收输入射频脉冲的至少一个模拟可编程延迟模块。 模拟可编程延迟模块响应于对输入射频脉冲施加至少一个时间延迟而产生时间延迟的输出信号。 开关模块被配置为选择性地将时间延迟的输出信号传送到电子模拟存储器系统的输出端。 电子模拟存储器系统还包括被配置为确定输入射频脉冲的幅度的活动检测器模块。 响应于至少一个振幅超过振幅阈值，活动检测器模块还控制切换模块将延时输出信号传送到输出端。
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公开(公告)号：US09543662B2
公开(公告)日：2017-01-10
申请号：US14199126
申请日：2014-03-06
Applicant: Raytheon Company
Inventor： Harry B. Marr , Walter B. Schulte, Jr. , John P. Gianvittorio
IPC: G01S7/03 , G01S13/44 , H01Q25/00 , H01Q3/24 , H01Q3/26 , H04B7/06 , H04B7/08 , G01S7/38 , H01Q15/02
CPC classification number: H01Q25/008 , G01S7/03 , G01S7/38 , G01S13/4409 , H01Q3/2676 , H01Q15/02 , H04B7/0671 , H04B7/0894
Abstract: Embodiments are directed to operating an analog signal processing circuit to emulate a Rotman lens. The analog signal processing circuit applies a plurality of time delays to a plurality of signals associated with a plurality of beam ports. The analog signal processing circuit forms a plurality of output beams for transmission by a plurality of array ports included in an array based on the time delayed signals by summing the time delayed signals. The time delays are based on a direction of transmission of the output beams.
Abstract translation: 实施例涉及操作模拟信号处理电路以模拟Rotman透镜。 模拟信号处理电路对与多个波束端口相关联的多个信号应用多个时间延迟。 模拟信号处理电路通过对时间延迟信号求和来形成多个输出光束，用于通过包括在阵列中的多个阵列端口基于时间延迟的信号进行传输。 时间延迟基于输出光束的传输方向。
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