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1.发明申请公开(公告)号：US20230009945A1
公开(公告)日：2023-01-12
申请号：US17947911
申请日：2022-09-19
摘要： A method and apparatus for improving signal reception in a radio signal receiver is provided. The method comprises: receiving a signal from one or more remote sources; determining movement of the receiver; obtaining first and second phasor sequences indicative of the determined movement of the receiver in first and second directions; generating a third phasor sequence based on a weighted combination of the first and second phasor sequences in accordance with the first and second directions; and providing a correlation signal using the third phasor sequence, wherein providing the correlation signal comprises correlating a local signal with the received signal, and combining at least one of the local signal, received signal, and the result of the correlation with the third phasor sequence, such that a signal received along the second direction is suppressed relative to a signal received along the first direction. A corresponding positioning system is also disclosed.
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公开(公告)号：US20240195460A1
公开(公告)日：2024-06-13
申请号：US18524022
申请日：2023-11-30
IPC分类号： H04B7/0426 , H04B7/06 , H04L5/00
CPC分类号： H04B7/043 , H04B7/0617 , H04L5/0048
摘要： A method and apparatus for performing direction division multiple access. In some embodiments, the method includes: performing motion compensated correlation upon a received signal transmitted from a transceiver to generate at least one motion compensated correlation result; identifying a direction of arrival for the received signal using the at least one motion compensated correlation result; and selecting, using the direction of arrival of the received signal, to communicate with the transceiver.
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公开(公告)号：US20240007861A1
公开(公告)日：2024-01-04
申请号：US18216434
申请日：2023-06-29
IPC分类号： H04W12/122 , H04L9/40
CPC分类号： H04W12/122 , H04L63/1483
摘要： A method, apparatus and system for determining a legitimacy of a signal source for providing signal intelligence and security includes receiving a signal from at least one emitter at an antenna of at least one receiver, determining a motion of the antenna of the at least one receiver, performing motion compensated correlation on the received signal to generate at least one motion compensated correlation result, determining a direction of arrival for the received signal using the motion compensated correlation result, determining a location of the at least one emitter using the direction of arrival of the received signal, and determining the legitimacy for the at least one emitter based on the determined location of the at least one emitter and information regarding locations of legitimate emitters. Additionally, an action affecting the reception of signals from the emitter at the receiver can be performed based on the legitimacy of the emitter.
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公开(公告)号：US20240048969A1
公开(公告)日：2024-02-08
申请号：US18218245
申请日：2023-07-05
摘要： A method and apparatus configured to create a zone of privacy within which tracking signals, transmitted by a tracking device located within the privacy zone, cannot be used to identify a location of the tracking device.
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公开(公告)号：US20240007993A1
公开(公告)日：2024-01-04
申请号：US18216431
申请日：2023-06-29
CPC分类号： H04W64/006 , G01S5/01 , G01S5/0269
摘要： A method, apparatus, and system for determining locations of cellular emitters include receiving at least one signal from the cellular emitters at an antenna of at least one receiver, determining a motion of the antenna of the at least one receiver that received the at least one signal, using the determined antenna motion, performing motion compensated correlation upon the at least one received signal to generate at least one motion compensated correlation result, determining a direction of arrival for the at least one received signal using the at least one motion compensated correlation result, and determining a location of the cellular emitters using the direction of arrival of the at least one received signal and a known location of the at least one receiver. A geolocation map of the locations of the emitters of, for example, cell base station towers can be generated using determined emitter locations.
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公开(公告)号：US20230129514A1
公开(公告)日：2023-04-27
申请号：US17970864
申请日：2022-10-21
IPC分类号： G01S19/43
摘要： A method comprising receiving, at a receiver, a plurality of signals from at least one remote source and selecting at least one selected signal in the plurality of signals. The method determines, using the at least one selected signal, a position of the receiver and receives correction data for improving the position of the receiver to a sub-wavelength accuracy. The method further determines motion of the receiver, generates, from the at least one selected signal, a motion-compensated correlation signal based on the determined motion of the receiver and uses the motion-compensated correlation signal to either (1) select the at least one selected signal to be used to determine the position of the receiver, (2) correct at least one of motion sensor errors or clock errors, or (3) both (1) and (2). Embodiments include a positioning system for performing the method.
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公开(公告)号：US20220404511A1
公开(公告)日：2022-12-22
申请号：US17892671
申请日：2022-08-22
摘要： A method for performing in a positioning, navigation, tracking, frequency-measuring, or timing system is provided. The method comprises: providing first and second estimates of at least one system parameter during a first time period, wherein the at least one system parameter has a true value and/or true evolution over time during the first time period; providing a local signal; receiving, at a receiver, a signal from a remote source; providing a correlation signal by correlating the local signal with the received signal; providing amplitude and/or phase compensation of at least one of the local signal, the received signal and the correlation signal based on each of the first and second estimates so as to provide first and second amplitude-compensated and/or phase-compensated correlation signals corresponding to the first and second estimates of the at least one system parameter during the first time period, and; determining which of the first and second estimates is nearer the true value and/or true evolution over time of the at least one system parameter during the first time period, based on a comparison between the first and second amplitude-compensated and/or phase-compensated correlation signals. A computer readable medium and system are also disclosed.
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公开(公告)号：US20240019584A1
公开(公告)日：2024-01-18
申请号：US18222595
申请日：2023-07-17
IPC分类号： G01S19/43
CPC分类号： G01S19/43
摘要： A method and apparatus for performing motion compensated signal processing without using traditional IMU data from a full complement of traditional IMU sensors. In some embodiments, the method may include: receiving, at a receiver, a first signal from a remote source in a first direction; providing a first local signal; determining, using first data, and without using data derived from an accelerometer, a movement of the receiver; providing a correlation signal by correlating the local signal with the received signal; providing motion compensation of at least one of the local signal, the received signal, and the correlation signal, based on the determined movement in the first direction to provide preferential gain for a signal received along the first direction and processing the received first signal based on the said correlation.
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公开(公告)号：US20240014549A1
公开(公告)日：2024-01-11
申请号：US18218877
申请日：2023-07-06
CPC分类号： H01Q3/02 , H01Q1/2291
摘要： A system is disclosed and comprises a mobile platform, an antenna configured to receive a signal from a remote source in a first direction, a movement mechanism mounted to the platform, wherein the antenna is mounted to the movement mechanism, the movement mechanism being configured to move the antenna relative to the platform, and a controller configured to: generate a local signal, determine a component of motion of the antenna in the first direction, correlate the local signal with the received signal to provide a correlation signal, and motion compensating at least one of the local signal, the signal from the remote source, and the correlation signal based on the determined motion of the antenna in the first direction.
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公开(公告)号：US20230417858A1
公开(公告)日：2023-12-28
申请号：US18214805
申请日：2023-06-27
CPC分类号： G01S5/01 , G01S5/0269
摘要： Methods and systems including: generating a first local signal (LS); receiving, at a receiver, a first signal from a remote source; determining a receiver movement; generating a first correlation signal by correlating the first LS with the first signal; providing motion compensation of at least one of the first LS, the first signal, and the first correlation signal based on the receiver movement along a direction of interest (DOI) to generate a first correlation signal; determining that the first signal has been received along the DOI, based on the first correlation signal, generating a second LS having at least one parameter based on the first signal received along the DOI; receiving, at the receiver, a second signal along the DOI; and processing the received second signal using the second LS to determine a metric of interest related to the receiver, and/or to a communications link that includes the receiver.
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