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公开(公告)号：US11063616B2
公开(公告)日：2021-07-13
申请号：US16043684
申请日：2018-07-24
Applicant: RAYTHEON COMPANY
Inventor： Alexander Scott , Daniel Thompson , Harry B. Marr
Abstract: An RF detection system includes a signal routing processor and a dynamically reconfigurable channelizer. The signal routing processor selects an operating mode of the RF detection system among a plurality of different operating mode. The dynamically reconfigurable channelizer invokes the selected operating mode in response to a routing control signal output by the signal routing processor. The dynamically reconfigurable channelizer includes a plurality of signal processing resources and a crossbar switching circuit. The crossbar switching circuit includes a signal input to receive an input signal and a signal output to output a final processed signal indicating a detected object. The crossbar switching circuit selectively establishes a plurality of different signal routing paths that connect the plurality of signal processing resources to the signal input and signal output.
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公开(公告)号：US10965023B2
公开(公告)日：2021-03-30
申请号：US15861398
申请日：2018-01-03
Applicant: Raytheon Company
Inventor： Harry B. Marr
Abstract: A beamforming system includes a plurality of channelizers and a channel switching module in signal communication with the channelizers. Each channelizer is configured to receive a respective input radio frequency signal and to generate a plurality of respective channels in response to downsampling the respective input radio frequency signal. The channel switching module includes a channel combining circuit configured to selectively combine a common channel generated by each channelizer to form at least one steered analog beam.
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公开(公告)号：US10819377B1
公开(公告)日：2020-10-27
申请号：US16403442
申请日：2019-05-03
Applicant: RAYTHEON COMPANY
Inventor： Harry B. Marr , Daniel Thompson , Aleksandr S. Radunsky
IPC: H04B1/04 , H04B10/516 , H04B1/03
Abstract: A transmitter. In some embodiments, the transmitter has an electrical input and an optical output. The transmitter may include a light source; an optical amplitude modulator having an optical input connected to the light source, a modulation input connected to the electrical input, and an output; and a first gated optical comparator, having a sampling clock input, an analog input connected to the output of the optical amplitude modulator, and an output. The first gated optical comparator may be configured to generate, for each cycle of an optical sampling clock signal received at the sampling clock input, a one-bit digital representation of an analog optical signal received at the analog input.
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公开(公告)号：US10707913B2
公开(公告)日：2020-07-07
申请号：US16121510
申请日：2018-09-04
Applicant: RAYTHEON COMPANY
Inventor： Harry B. Marr , Daniel Thompson , Ian S. Robinson
Abstract: A radio frequency system. In some embodiments, the system includes a one-bit receiver, and the one-bit receiver includes a digital pseudo random noise generator, a one-bit digital to analog converter, a power combiner, a one-bit analog to digital converter, and a digital subtraction circuit. The digital pseudo random noise generator produces a signal added to the received signal before analog to digital conversion. After analog to digital conversion, a delayed version of the dither is subtracted from the digital signal.
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公开(公告)号：US10598763B2
公开(公告)日：2020-03-24
申请号：US15221347
申请日：2016-07-27
Applicant: RAYTHEON COMPANY
Inventor： Theodore M. Kellum , Walter B. Schulte, Jr. , Harry B. Marr
Abstract: A method for concurrent transmission of different signal types by a radar system includes: receiving a waveform request for transmitting a first signal type and a second signal type; determining whether the first signal or the second signal is optimized; when the first signal is optimized: transmitting the first and the second signal simultaneously in separate bands; and when the second signal is optimized: determining a time gap between transmission of the second signal, and adjusting pulse repetition interval (PRI) or pulse width of the first signal to fit in the time gap, transmitting the second signal, and transmitting the first signal in the time gap between the transmission of the second signal.
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Patent Agency Ranking
公开(公告)号：US20200076464A1
公开(公告)日：2020-03-05
申请号：US16121510
申请日：2018-09-04
Applicant: RAYTHEON COMPANY
Inventor： Harry B. Marr , Daniel Thompson , Ian S. Robinson
Abstract: A radio frequency system. In some embodiments, the system includes a one-bit receiver, and the one-bit receiver includes a digital pseudo random noise generator, a one-bit digital to analog converter, a power combiner, a one-bit analog to digital converter, and a digital subtraction circuit. The digital pseudo random noise generator produces a signal added to the received signal before analog to digital conversion. After analog to digital conversion, a delayed version of the dither is subtracted from the digital signal.
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公开(公告)号：US10536302B1
公开(公告)日：2020-01-14
申请号：US16122733
申请日：2018-09-05
Applicant: RAYTHEON COMPANY
Inventor： Harry B. Marr , Zachary Dunn
IPC: H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08 , H04L25/03 , H04L25/02
Abstract: System and method for beamspace nonlinear equalization in a plurality of parallel channels includes: receiving M parallel signals for transmission by N channels, respectively, wherein M is an integer greater than or equal to 1 and N is an integer greater than 1; performing a linear transfer function on each of the M parallel signal by a finite impulse response (FIR) filter; adding FIR filter tap outputs to each M parallel signals, respectively; phase shifting an output of a respective FIR filter per each of the M parallel signals to generate M intermediate channelized output signals per each of the N channels; summing, by a single summer, the M intermediate channelized output signals across the N channels to produce M channelized polyphase output signals; serializing the M channelized polyphase output signals to generate serialized M polyphase output signals; and equalizing the serialized M polyphase output signals to produce a linearized signal in beamspace.
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公开(公告)号：US20190104002A1
公开(公告)日：2019-04-04
申请号：US15721467
申请日：2017-09-29
Applicant: Raytheon Company
Inventor： Daniel Thompson , Harry B. Marr
IPC: H04L27/12
Abstract: Circuit and method for modulating filter coefficients of a frequency channelizer having a filter bank include: receiving a wide spectrum input signal; modulating the filter coefficients of the filter bank to sweep a center frequency of each channel of the frequency channelizer, using a modulation scheme; and inputting frequency offset compensation caused by the modulation, and output signals of the frequency channelizer to an application processing circuit to convert the output signals to their original center frequencies.
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公开(公告)号：US10084587B1
公开(公告)日：2018-09-25
申请号：US15663308
申请日：2017-07-28
Applicant: Raytheon Company
Inventor： Daniel Thompson , Harry B. Marr , Ian S. Robinson
CPC classification number: H04L5/06 , G01S3/043 , G01S3/465 , G01S3/48 , G01S3/808 , H01Q19/175 , H01Q25/008 , H04W72/0406
Abstract: A digital receiver includes a digital synthesizer that generates a local oscillating (LO) signal at a selected frequency, and a signal mixer that receives an input signal and generates a mixed output signal in response to shifting a phase of the input signal based on the frequency of the LO signal. A multi-mode dynamic channelizer is selectively operable in a first mode and a second mode. The first mode generates a plurality of individual channels having a channel size defined by a bandwidth and a gain, and the second mode generates a parallelization of a selected channel. In response to operating in the second mode, the multi-mode dynamic channelizer adjusts at least one of the bandwidth and the gain of the selected channel based on the mixed output signal to change the channel size of the selected channel.
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公开(公告)号：US20180145406A1
公开(公告)日：2018-05-24
申请号：US15861398
申请日：2018-01-03
Applicant: Raytheon Company
Inventor： Harry B. Marr
CPC classification number: H01Q3/00 , H01Q3/26 , H04B7/0617 , H04B7/0634
Abstract: A beamforming system includes a plurality of channelizers and a channel switching module in signal communication with the channelizers. Each channelizer is configured to receive a respective input radio frequency signal and to generate a plurality of respective channels in response to downsampling the respective input radio frequency signal. The channel switching module includes a channel combining circuit configured to selectively combine a common channel generated by each channelizer to form at least one steered analog beam.
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