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公开(公告)号:WO2023083017A1
公开(公告)日:2023-05-19
申请号:PCT/CN2022/128077
申请日:2022-10-27
申请人: 华为技术有限公司
IPC分类号: G01S3/48
摘要: 一种信号到达角度估计方法,应用于电子设备,该电子设备包括天线单元,天线单元包括第一天线和第二天线,天线单元具有至少两个天线场型状态。在该方法中,电子设备控制天线单元在至少两个天线场型状态中切换;在每个天线场型状态下,电子设备通过第一天线和第二天线接收具有相同到达角度的无线电信号并计算第一天线和第二天线的相位差,以得到至少两个天线场型状态下对应的至少两个相位差;电子设备依据至少两个相位差确定无线电信号的到达角度。通过该方法,电子设备可以更准确地估计无线电信号的到达角度。还提供了一种计算机可读存储介质及计算机程序产品。
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公开(公告)号:WO2023044224A1
公开(公告)日:2023-03-23
申请号:PCT/US2022/075215
申请日:2022-08-19
摘要: Disclosed are techniques for communication. In an aspect, a first node determines equiphase contour information associated with an antenna of the first node at one or more carrier frequencies, and transmits an indication of the equiphase contour information to a second node. In another aspect, a device determines equiphase contour information associated with an antenna of a first node at one or more carrier frequencies, and corrects measurement information associated with a carrier phase-based position estimation session based at least in part on the equiphase contour information.
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公开(公告)号:WO2022051127A2
公开(公告)日:2022-03-10
申请号:PCT/US2021/047257
申请日:2021-08-24
IPC分类号: G01S11/02 , G01S3/04 , G01S5/02 , G06N3/02 , H04L25/02 , G01S5/12 , G01S5/14 , G01S3/043 , G01S3/48 , G01S5/0218 , G01S5/0278 , G06N3/0454 , G06N3/08 , H04L25/0204 , H04L25/0212 , H04L25/0254 , H04W64/003
摘要: Techniques are provided for neural network based positioning of a mobile device. An example method for determining a line of sight delay, an angle of arrival, or an angle of departure value includes receiving reference signal information, determining one or more windowed channel impulse responses based on the reference signal information and one or more window functions, processing the one or more windowed channel impulse responses with a neural network and determining an output of the neural network.
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4.
公开(公告)号:WO2021252415A1
公开(公告)日:2021-12-16
申请号:PCT/US2021/036291
申请日:2021-06-08
申请人: WITAGG, INC.
发明人: WANG, Jing , ZHU, Hongjun
摘要: A device for estimating a fixed position of a wireless communication is provided. The device comprises a radio connected to an antenna array, a memory and a process. The radio can receive a first signal transmitted from a first direction by the wireless communication device to the movable device, and a second signal transmitted from a second direction by the wireless communication device to the movable device. The processor can calculate a first angle of arrival (AOA) a second AOA. The processor can estimate the fixed position of the wireless communication device based on the first AOA, the second AOA, the first position and the second position.
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5.
公开(公告)号:WO2021170693A1
公开(公告)日:2021-09-02
申请号:PCT/EP2021/054628
申请日:2021-02-25
申请人: RWTH AACHEN
摘要: Die Erfindung betrifft ein System zur Bestimmung der räumlichen Position eines ersten Objektes relativ zu einem zweiten Objekt, wobei das erste Objekt und das zweite Objekt eine abstandsverändernde Relativbewegung zueinander ausführen, das erste Objekt mindestens einen ersten Sender (TX1) aufweist, das zweite Objekt mindestens eine erste Empfangsantenne (ANT_RX1) und eine zweite Empfangsantenne (ANT_RX2) aufweist, wobei die erste Empfangsantenne und die zweite Empfangsantenne räumlich separiert angeordnet sind, das zweite Objekt weiterhin mindestens ein Empfängerfrontend (RX1) zur Detektion von Signalen der ersten Empfangsantenne und/oder der zweiten Empfangsantenne aufweist, das System weiterhin eine Verarbeitungseinheit (CPU_RX) aufweist, die aus den delektierten Signalen die Distanz des ersten Objektes relativ zu dem zweiten Objekt und den Winkel zwischen dem ersten Objekt und dem zweiten Objekt bestimmt, und die erste Empfangsantenne und die zweite Empfangsantenne jeweils zumindest ein eindimensionales Antennenarray aufweist und das Antennenarray zumindest zwei Einzelantennen aufweist, und dass die erste Empfangsantenne und die zweite Empfangsantenne in einem Abstand von mehr als einer Wellenlänge eines vom ersten Sender verwendeten Signals räumlich separiert zueinander angeordnet sind.
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公开(公告)号:WO2021155343A2
公开(公告)日:2021-08-05
申请号:PCT/US2021/016008
申请日:2021-02-01
摘要: A GPR system the implements a modified multistatic mode of operation is provided. The GPR is suitable for mounting on an unmanned aerial vehicle. The GPR system has radar transceivers. The GPR system transmits transmit signal serially via the transceivers. For each transceiver that transmits a transmit signal, the GPR system receives a return signal acquired by each transceiver except for a return signal for the transceiver that transmits the transmit signal. The GPR system outputs of matrix of return signals that includes a null value for the return signals of the transceivers that transmit.
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公开(公告)号:WO2020196580A1
公开(公告)日:2020-10-01
申请号:PCT/JP2020/013206
申请日:2020-03-25
申请人: パナソニックIPマネジメント株式会社
摘要: レーダ装置は、複数の送信アンテナ素子毎に周期的に第1の位相回転を施され、かつ、送信アンテナ素子に応じた位相差を有する複数のレーダ信号を、それぞれ、複数の送信アンテナ素子から送信する送信回路と、複数のレーダ信号が検出対象において反射した反射波信号を、複数の受信アンテナ素子によって受信する受信回路と、複数の受信アンテナ素子によって受信された反射波信号のそれぞれに送信アンテナ素子毎の第1の位相回転とは逆の位相回転であって第1の位相回転と位相差とに応じた回転量の第2の位相回転を与えた信号に残留するドップラー周波数成分のうち、ドップラー周波数成分の推定到来方向における電力が位相差に応じて相対的に低下したドップラー周波数成分を除去する除去回路と、を備える。
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公开(公告)号:WO2020012591A1
公开(公告)日:2020-01-16
申请号:PCT/JP2018/026288
申请日:2018-07-12
申请人: 三菱電機株式会社
IPC分类号: G01S3/48
摘要: この発明に係る方向推定装置は、複数のアンテナを用いて受信される信号の品質を測定又は予測する信号品質算出部と、前記信号品質算出部で測定又は予測された信号の品質に応じて、前記信号の到来方向を推定する角度範囲を設定する角度範囲設定部と、前記角度範囲設定部で設定された角度範囲で前記信号の到来方向を推定する方向推定部と、を備えたことを特徴とする。この構成により、方向推定の対象となる信号の中で信号品質の高い信号に対して、従来技術よりも広い角度範囲で方向推定を行うことができる。
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公开(公告)号:WO2019204168A8
公开(公告)日:2019-10-24
申请号:PCT/US2019/027381
申请日:2019-04-12
申请人: APPLE INC.
IPC分类号: G01S13/75 , G01S3/04 , G01S3/46 , G01S3/48 , G01S13/86 , G01S13/42 , G01S13/46 , G01S13/76 , G01S13/82 , G01S13/84
摘要: An electronic device may use information about the location of nearby devices to make sharing with those devices more intuitive for a user. The electronic device may include control circuitry, wireless circuitry including first and second antennas, and motion sensor circuitry. The control circuitry may determine the location of a nearby electronic device by calculating the angle of arrival of signals that are transmitted by the nearby electronic device. To obtain a complete, unambiguous angle of arrival solution, the electronic device may be moved into different positions during angle of arrival measurement operations. At each position, the control circuitry may calculate a phase difference associated with the received signals. Motion sensor circuitry may gather motion data as the electronic device is moved into the different positions. The control circuitry may use the received antenna signals and the motion data to determine the complete angle of arrival solution.
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公开(公告)号:WO2019118144A1
公开(公告)日:2019-06-20
申请号:PCT/US2018/062195
申请日:2018-11-21
发明人: SIMILEYSKY, Victor
摘要: An apparatus includes a first antenna and a second antenna. A solid dielectric material is disposed between the first antenna and the second antenna. The solid dielectric material may alter radio-frequency signals received by the first antenna or the second antenna by reducing the propagation speed of the radio-frequency signals. This allows the angle of arrival of the radio-frequency signals to be determined.
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