-
公开(公告)号：US11764857B2
公开(公告)日：2023-09-19
申请号：US17467036
申请日：2021-09-03
Applicant: The Boeing Company
Inventor： Gary A. Ray
IPC: H04B7/08
CPC classification number: H04B7/0888 , H04B7/088
Abstract: Methods for improving multiple signal reception using receiver diversity in the context of a wideband radar and communications receiver. The method allows for improved signal reception as well as improved angle of arrival estimation. A first approach uses a method that improves angle of arrival estimation while using the standard diversity technique of selection combining. A second approach uses a method of equalization of the signal rather than equalization of the channel to both improve the signal SNR over standard selection combining and further improve the angle of arrival estimate over the first approach.
-
公开(公告)号：US11736323B2
公开(公告)日：2023-08-22
申请号：US17397682
申请日：2021-08-09
Applicant: The Boeing Company
Inventor： Gary A. Ray
CPC classification number: H04L25/08 , H04L25/03828
Abstract: Systems and methods which use adjunct signals from a remote highly stable clock to enhance performance of a digital wideband receiver equipped with a less stable local clock system. The digital wideband receiver includes an analog-to-digital converter (ADC) and an adjunct receiver system connected to the output of the ADC. The adjunct receiver system includes matched filters and circuitry configured to generate an interpolation coefficient vector based on the matched filter outputs. The adjunct receiver system further includes an interpolating filter which is configured to remove jitter from the digitized samples output by the ADC using the interpolation coefficient vector.
-
公开(公告)号：US11444643B2
公开(公告)日：2022-09-13
申请号：US16858960
申请日：2020-04-27
Applicant: The Boeing Company
Inventor： Gary A. Ray
Abstract: Systems and methods for estimating frequency and bandwidth of unknown signals using learned features of a filter pair for the purpose of detecting, separating and tracking these signals in an electronic receiver. The techniques could be part of a signal cueing system that initiates signal detection, separation and tracking or a signal separation and tracking system which is initialized by the cueing system and adaptively updates frequency and bandwidth estimates so as to continuously separate and track signals after initial detection. The methodology is to train the filter responses using machine learning by creating a grid of training data based on signal examples that cover a span of frequencies and bandwidths. The system estimates frequency and bandwidth in real time, inputs those estimates into interpolating lookup tables to retrieve filter coefficients, and provides those filter coefficients to a tunable tracking filter.
-
公开(公告)号：US20220271826A1
公开(公告)日：2022-08-25
申请号：US17467036
申请日：2021-09-03
Applicant: The Boeing Company
Inventor： Gary A. Ray
IPC: H04B7/08
Abstract: Methods for improving multiple signal reception using receiver diversity in the context of a wideband radar and communications receiver. The method allows for improved signal reception as well as improved angle of arrival estimation. A first approach uses a method that improves angle of arrival estimation while using the standard diversity technique of selection combining A second approach uses a method of equalization of the signal rather than equalization of the channel to both improve the signal SNR over standard selection combining and further improve the angle of arrival estimate over the first approach.
-
公开(公告)号：US11217889B2
公开(公告)日：2022-01-04
申请号：US16539028
申请日：2019-08-13
Applicant: The Boeing Company
Inventor： Gary A. Ray
Abstract: Systems and methods for forming optimized transmit or receive beams using an array antenna. A parallelized beam forming algorithm is employed that allows the beam to be optimized to increase performance over typical time-delay beam steering. The parallelized beam forming optimization algorithm is based on a limited-memory Broyden-Fletcher-Goldfarb-Shanno algorithm with bound constraints. Using a matrix form of both the beam and beam gradient functions allows parallel optimization through beam matching against a designed target beam. Because the optimization is both efficient and parallelizable, beams may be optimized beams in real time. Hence the optimization technique may be implemented directly as part of a beam steering controller.
-
Patent Agency Ranking
16.发明授权公开(公告)号：US11125854B2
公开(公告)日：2021-09-21
申请号：US16364921
申请日：2019-03-26
Applicant: The Boeing Company
Inventor： Gary A. Ray
Abstract: A system and a method that enable time transfer and position determination services during operation of a combined radar/communications system. One aspect of the method is broadcasting a signal that any system receiving it can use to synchronize system clocks to the set of master clocks among a selected subset of transmitting platforms. This broadcast signal can occur during both radar and communications operations. In addition, with three or more mobile or fixed platforms broadcasting the signal, any one receiving the signal can also derive position information. The time transfer and position determination service can operate at the same time as operation of both radar and communications functions. The broadcast information is derived from internal time and position information as determined by the individual transmitting platforms. A small set of such platforms are configured to broadcast signals that transfer both accurate time and accurate position to all other platforms within radiofrequency (RF) range.
-
17.发明申请公开(公告)号：US20200309897A1
公开(公告)日：2020-10-01
申请号：US16364921
申请日：2019-03-26
Applicant: The Boeing Company
Inventor： Gary A. Ray
Abstract: A system and a method that enable time transfer and position determination services during operation of a combined radar/communications system. One aspect of the method is broadcasting a signal that any system receiving it can use to synchronize system clocks to the set of master clocks among a selected subset of transmitting platforms. This broadcast signal can occur during both radar and communications operations. In addition, with three or more mobile or fixed platforms broadcasting the signal, any one receiving the signal can also derive position information. The time transfer and position determination service can operate at the same time as operation of both radar and communications functions. The broadcast information is derived from internal time and position information as determined by the individual transmitting platforms. A small set of such platforms are configured to broadcast signals that transfer both accurate time and accurate position to all other platforms within radiofrequency (RF) range.
-
公开(公告)号：US10275707B2
公开(公告)日：2019-04-30
申请号：US14536798
申请日：2014-11-10
Applicant: THE BOEING COMPANY
Inventor： Gary A. Ray
IPC: G06N3/08
Abstract: A method for training a neural network to be configured to filter a multipath corrupted signal is provided. The method includes receiving, at the neural network, real or simulated multipath corrupted signal data, and training the neural network on the multipath corrupted signal data using a complex iterated least square thresholding algorithm (CILST) capable of processing both real and complex signals.
-
公开(公告)号：US20180167102A1
公开(公告)日：2018-06-14
申请号：US15374448
申请日：2016-12-09
Applicant: The Boeing Company
Inventor： Gary A. Ray
IPC: H04B1/7113 , H04B17/14 , H04B7/185
CPC classification number: H04B1/7113 , G01S3/04 , G01S3/14 , H04B7/0417 , H04B7/0617 , H04B7/18502 , H04B17/14 , H04B2201/709718
Abstract: A system for phased array signal beam tracking includes a phased array transmitter configurable for transmitting a signal beam at a selected transmit beam angle from a plurality of different transmit beam angles. The system also includes a beam gain angle coding assembly configured for modulation of a gain of the signal beam to produce a resulting gain profile of the signal beam. The resulting gain profile includes offset angle coding that indicates an offset incident angle of the signal beam at a receiving antenna.
-
公开(公告)号：US09991908B2
公开(公告)日：2018-06-05
申请号：US15271512
申请日：2016-09-21
Applicant: The Boeing Company
Inventor： Gary A. Ray
CPC classification number: H04B1/0053 , G01S7/021 , G06T7/0081 , G06T7/11 , H04B1/1638
Abstract: A blind source separation (BSS) system comprises means for gathering wideband signal power spectral information without using special Fourier transform hardware/software systems and without using extremely large signal memories. The method involves taking the combined energy output of a large set of BSS filters that are operating under a blind source separation algorithm that looks for signals of interest, along with instantaneous filter characteristics such as center frequency, bandwidth and spectral response, and records a weighted spread energy into a frequency- and time-based histogram. This information can then be used to compare against the BSS signal output and signal energy which does not correspond to existing signal output is added to additional BSS signal output. This system can operate in real time, but uses long-term averaging to enhance signal detection.
-
-
-
-
-
-
-
-
-
Search Results
56
records
(took 0.033 seconds)
