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公开(公告)号:WO2022236248A1
公开(公告)日:2022-11-10
申请号:PCT/US2022/072047
申请日:2022-05-02
Applicant: GOOGLE LLC
Inventor: WANG, Jibing , STAUFFER, Erik Richard
Abstract: Techniques and apparatuses are described that implement cooperative bistatic radar sensing using deep neural networks. In particular, a base station (120) operates as a transmitter of the bistatic radar, and the user equipment (110) operates as a receiver of the bistatic radar. During radar sensing, the base station (120) and the user equipment (110) use their respective deep neural networks (460 and 420) for signal generation and signal processing. The deep neural networks (460 and 420) also enable the base station (120) and the user equipment (110) to utilize the same hardware for both radar sensing and wireless communication. With cooperative bistatic radar sensing, the base station (120) and the user equipment (110) can compile explicit information about objects within an operating environment and use this information to improve wireless communication performance.
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公开(公告)号:WO2022184216A1
公开(公告)日:2022-09-09
申请号:PCT/DE2022/200027
申请日:2022-02-23
Applicant: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH
Inventor: WEISGERBER, Lars , SCHUEHLER, Mario
IPC: G01S7/28 , G01S7/288 , G01S7/292 , G01S7/41 , G01S13/02 , G01S13/18 , G01S13/58 , G01S13/87 , G01S13/88 , G01S13/46
Abstract: Die Erfindung betrifft ein Verfahren zum Betreiben einer Ultrabreitbandvorrichtung (1). Die Erfindung sieht vor, dass durch einen Ultrabreitbandsensor (2) zu unterschiedlichen Zeitpunkten (t) Impulsfunksignale (TX) ausgesandt und jeweilige Kanalimpulsantworten (h(τ)) generiert werden, welche ein jeweiliges reflektiertes Signal (RX) in Abhängigkeit von einer Pfadverzögerung (τ) beschreiben. Aus den Kanalimpulsantworten (h(τ)) wird eine zeitvariante Kanalimpulsantwort (h(t, τ)) generiert, in welchem die Kanalimpulsantworten (h(τ)) gemäß den Zeitpunkten (t) des Aussendens der jeweils zugehörigen Impulsfunksignale (TX) geordnet sind. In Streufunktionen (hs(v, τ)) jeweiliger Zeitfenster wird zumindest ein jeweiliges lokales Maximum (P) der Streufunktionsgröße, charakterisiert durch eine jeweilige Dopplerfrequenz (vP) und eine jeweilige Pfadverzögerung (τP), erfasst. Nach einem vorbestimmten Auswahlverfahren wird zumindest ein lokales Maximum (P) als jeweiliges für eine Bewegungserkennung zu verfolgendes Beobachtungsmaximum ausgewählt. Ein Signalverlauf (ϕ(t)) der Kanalimpulsantwort (h(t, τ)) wird für das jeweilige zu verfolgende Beobachtungsmaximum generiert und durch ein vorbestimmtes Bewegungserkennungsverfahren zumindest eine vorbestimmte Bewegung (7) erfasst.
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公开(公告)号:WO2022164582A1
公开(公告)日:2022-08-04
申请号:PCT/US2021/072608
申请日:2021-11-24
Applicant: QUALCOMM INCORPORATED
Inventor: NAM, Wooseok , DAI, Yucheng , LUO, Tao , AKKARAKARAN, Sony , LI, Junyi
Abstract: In an aspect, a first and second wireless node communicate a bistatic sensing request and a response to the bistatic sensing request to coordinate setup of a bistatic sensing procedure. The first wireless node transmits a set of sensing signals to one or more target objects in accordance with the bistatic sensing procedure. The second wireless node measures a set of reflections of the set of sensing signals reflected off of one or more target objects in accordance with the bistatic sensing procedure.
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公开(公告)号:WO2022138312A1
公开(公告)日:2022-06-30
申请号:PCT/JP2021/045971
申请日:2021-12-14
Applicant: パナソニックIPマネジメント株式会社
Abstract: センサ(110)は、受信信号から複素伝達関数を算出する複素伝達関数算出部(301)と、L箇所の位置の1つに検出対象を配置するときの複素伝達関数をL箇所の位置それぞれについて算出し、検出対象を配置する位置の理論値である理想複素伝達関数をL箇所の位置それぞれについて算出し、複素伝達関数と理想複素伝達関数とを用いて反射係数を算出する反射係数算出部(302)と、反射係数を規格化した規格化反射係数を算出する各種規格化部(303)と、検出対象の位置推定に用いる座標ごとに規格化反射係数を用いて反射係数の補間計算をすることで補間反射係数を計算する反射係数補間部(304)と、送信アンテナ素子と受信アンテナ素子とのそれぞれの位置に基づき決定されるステアリングベクトルと補間反射係数とを用いて位置推定の補正を行う位置推定部(306)とを備える。
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公开(公告)号:WO2022004231A1
公开(公告)日:2022-01-06
申请号:PCT/JP2021/020659
申请日:2021-05-31
Applicant: パナソニックIPマネジメント株式会社
Abstract: N個の送信素子から送信された信号を、M個の受信素子で受信された受信信号から、複素伝達関数を算出する複素伝達関数算出部(30)と、所定の空間の変動成分である生体情報を抽出する生体成分抽出部(40)と、生体情報から対象相関行列を算出する相関行列算出部(50)と、雑音相関行列を記録する雑音情報記憶部(60)と、雑音相関行列から算出される閾値と対象相関行列とをもとに所定の空間に存在する人数の仮定値である第一人数情報を算出する第一人数情報算出部(61)と、対象相関行列を用いて、生体における、位置の候補を推定し生体が位置に存在する尤度スペクトルを出力するMUSICスペクトル算出部(70)と、複数の位置候補を含みうる尤度スペクトルに基づく位置情報からより確度の高い生体の数である第二人数情報または位置を推定する第二人数情報算出部(80)と、を備える。
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公开(公告)号:WO2021197218A1
公开(公告)日:2021-10-07
申请号:PCT/CN2021/083191
申请日:2021-03-26
Abstract: 一种电子设备、用于定位的方法和非暂态计算机可读存储介质。该电子设备包括处理电路,处理电路被配置为:发送多个信标标签装置的地址码,以依次激活电子设备附近的信标标签装置(S1601);从每个激活信标标签装置获得标签配置信息,并根据标签配置信息获得该信标标签装置所在区域内的定位标签装置的地址码(S1602);发送所获得的各个定位标签装置的地址码,以激活相应的定位标签装置(S1603);获得各个激活定位标签装置反射射频参考信号而得到的反射参考信号,并利用反射参考信号对电子设备进行定位(S1604)。当该电子设备处于室内等与基站之间不存在直视径的环境时,也能够对电子设备提供准确的定位。
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公开(公告)号:WO2021113582A1
公开(公告)日:2021-06-10
申请号:PCT/US2020/063220
申请日:2020-12-04
Applicant: QUALCOMM INCORPORATED
Inventor: TRAININ, Solomon , KASHER, Assaf , EITAN, Alecsander , SAGI, Ariel
Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for multistatic radar communications. In some implementations, a transmitting device may transmit, to a receiving device, a radar alert frame followed by a codeword and one or more radar pulses. The radar pulses are transmitted, using beamforming, in a number of directions. The timing information indicates a timing offset or delay between one or more codewords of the codeword sequence and the beginning of the radar pulses. The receiving device may detect one or more codewords of the codeword sequence and an echo of at least one of the radar pulses, and determine the time at which the corresponding pulse was transmitted by the transmitting device. The receiving device may compare the timing of the echo with the timing of the transmitted pulse to determine a relative distance of an object that produced the echo.
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公开(公告)号:WO2021045864A1
公开(公告)日:2021-03-11
申请号:PCT/US2020/045227
申请日:2020-08-06
Applicant: APPLE INC.
Inventor: IOFFE, Anatoliy Sergey , NABAR, Rohit U. , VAZNY, Rastislav
Abstract: Systems and methods for using ranging signals with cellular devices. The ranging signals may utilize ranging slots and resources at least partially allocated by a cellular network. The resources may include frequencies used for uplink or downlink communications between the cellular network and the cellular devices. Alternatively, the resources may include frequencies outside of a spectrum used for communication between the cellular network and the cellular devices.
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公开(公告)号:WO2020079495A1
公开(公告)日:2020-04-23
申请号:PCT/IB2019/054079
申请日:2019-05-16
Inventor: BEHAIRY, Hatim M. , ADITYA, Sundar , MOLISCH, Andreas F.
Abstract: A method may include receiving radar data from a plurality of TX-RX pairs (TRPs); generating a plurality of first ellipses representing a first portion of the received radar data; determining a blocking likelihood at a point of intersection between the plurality of first ellipses; generating a new or additional ellipse representing a second portion of the received radar data; and updating, based on generating the new or additional ellipse, the blocking likelihood at the point of intersection between the first plurality of ellipses.
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公开(公告)号:WO2019204168A1
公开(公告)日:2019-10-24
申请号:PCT/US2019/027381
申请日:2019-04-12
Applicant: APPLE INC.
Inventor: ERTAN, Tune , LEDVINA, Brent, M. , BRUMLEY, Robert, W. , MEYER, Adam, S. , TSOL, Peter, C.
IPC: G01S13/75 , G01S3/04 , G01S3/46 , G01S3/48 , G01S13/86 , G01S13/42 , G01S13/46 , G01S13/76 , G01S13/82 , G01S13/84
Abstract: 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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