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公开(公告)号：US11287513B2
公开(公告)日：2022-03-29
申请号：US16456806
申请日：2019-06-28
发明人： Jerome Vermersch , Azziz Maroc , Jerome Coudre
IPC分类号： G01S7/282 , G01S13/06 , G01S13/931 , G01S13/00
摘要： A radar device for a motor vehicle comprises a radar antenna configured to detect a reflected signal characterized as a reflection of a transmitted signal reflected by an object present in the field of view of the radar antenna; a controller configured to transmit at least one radar signal from the radar antenna, the radar signal being transmitted according to a determined object detection transmission power; the controller being configured to detect the power level of the reflected signal derived from the transmitted radar signal reflected by the detected object; the controller being configured to adjust the transmission power, according to the power level of the reflected signal detected, to a minimum power sufficient for the detection of the detected object.
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公开(公告)号：US20220095236A1
公开(公告)日：2022-03-24
申请号：US17424593
申请日：2019-04-30
发明人： Qiwei Wang , Tyler Sims , William Allen
摘要： Managing aggregated node group power states. A reflected energy device may transmit energy to one of multiple aggregated node groups. Each aggregated node group includes multiple device nodes. The aggregated node group may be moved from one location to another. The transmitted energy is reflected to detect occurrence of a state change condition. A communication device such as the reflected energy device or an anchor node then instructs device node(s) of the aggregated node group to enter a high power state and to enter a low power state.
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公开(公告)号：US20220057500A1
公开(公告)日：2022-02-24
申请号：US17515692
申请日：2021-11-01
发明人： Mark PASSLER , Steven ROMANOW
摘要： A method in a wireless device (WD) for determining a best-fit geo-location of a target station is described. The best-fit geo-location is determined using a plurality of round-trip times (RTTs). The target station is movable. The method includes assigning values to current target station parameters. The current target station parameters include a current location for the target station and movement parameters. A plurality of square residuals is determined based at least in part on the current target station parameters. Each square residual of the plurality of square residuals corresponds to one RTT. A minimum of a sum of squared residuals (SSR) is determined based at least on the plurality of square residuals. best-fit parameters are determined based at least in part on the determined minimum of the SSR. In addition, the best-fit geo-location of the target station is determined based at least on the best-fit parameters.
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公开(公告)号：US11255960B2
公开(公告)日：2022-02-22
申请号：US16752575
申请日：2020-01-24
申请人： The Boeing Company
发明人： Soheil Kolouri , Shankar R. Rao
摘要： A synthetic aperture radar (SAR) system is disclosed. The SAR comprises a memory, a convolutional neural network (CNN), a machine-readable medium on the memory, and a machine-readable medium on the memory. The machine-readable medium storing instructions that, when executed by the CNN, cause the SAR system to perform operations. The operation comprises: receiving range profile data associated with observed views of a scene; concatenating the range profile data with a template range profile data of the scene; and estimating registration parameters associated with the range profile data relative to the template range profile data to determine a deviation from the template range profile data.
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公开(公告)号：US20220026531A1
公开(公告)日：2022-01-27
申请号：US17492598
申请日：2021-10-02
申请人： Chenshu Wu , Beibei Wang , K. J. Ray Liu , Oscar Chi-Lim Au
发明人： Chenshu Wu , Beibei Wang , K. J. Ray Liu , Oscar Chi-Lim Au
摘要： Methods, apparatus and systems for sound sensing based on radio signals are described. In one example, a described system comprises: a transmitter configured to transmit a first wireless signal through a wireless channel of a venue; a receiver configured to receive a second wireless signal through the wireless channel, wherein the second wireless signal comprises a reflection of the first wireless signal by at least one object in the venue; and a processor. The processor is configured for: obtaining a time series of channel information (CI) of the wireless channel based on the second wireless signal, determining a presence of a vibrating object in the venue based on the time series of CI (TSCI), extracting a sound signal from the TSCI, and reconstructing at least one speech based on the sound signal.
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公开(公告)号：US20220026519A1
公开(公告)日：2022-01-27
申请号：US17492642
申请日：2021-10-03
申请人： Chenshu Wu , Beibei Wang , K.J. Ray Liu , Oscar Chi-Lim Au
发明人： Chenshu Wu , Beibei Wang , K.J. Ray Liu , Oscar Chi-Lim Au
摘要： Methods, apparatus and systems for movement tracking are described. In one example, a described system comprises: at least one sensor configured to generate at least one sensing information (SI); a memory; a processor communicatively coupled to the memory and the at least one sensor; and a set of instructions stored in the memory. The set of instructions, when executed by the processor, cause the processor to: obtain at least one time series of SI (TSSI) from the at least one sensor, analyze the at least one TSSI, track a movement of an object in a venue based on the at least one TSSI, compute an incremental distance associated with the movement of the object in a first incremental time period based on the at least one TSSI, compute a direction associated with the movement of the object in a second incremental time period based on the at least one TSSI, and compute a next location of the object at a next time based on at least one of: a current location of the object at a current time, a current orientation of the object at the current time, the incremental distance, the direction, or a map of the venue.
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公开(公告)号：US11231505B2
公开(公告)日：2022-01-25
申请号：US16918795
申请日：2020-07-01
申请人： GeoOptics, Inc.
发明人： Thomas Patrick Yunck
摘要： A constellation of satellites and associated methods for Earth Observation are disclosed. One method includes transmitting a set of at least four signals towards the Earth using a constellation of at least four satellites and receiving a set of at least four reflected signals from the Earth using the constellation. The method also includes analyzing, using a set of at least four signal analyzers, the set of at least four signals to generate a set of data. Each satellite in the constellation individually houses a signal analyzer in the set of at least four signal analyzers. The method also includes deriving the set of Earth observations using the set of data. Each satellite receives a signal in the set of at least four signals from every other satellite in the constellation.
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38.发明申请公开(公告)号：US20220022056A1
公开(公告)日：2022-01-20
申请号：US17373513
申请日：2021-07-12
发明人： Sungwoo PARK , Wooseok NAM , Tao LUO , Junyi LI , Juan MONTOJO , Jing SUN , Xiaoxia ZHANG , Peter GAAL , Taesang YOO , Simone MERLIN , Srinivas YERRAMALLI , John Edward SMEE
摘要： Disclosed are techniques for environment sensing. In an aspect, a transmitter base station determines a configuration for a radio frequency (RF) sensing signal, the configuration determined based at least in part on coordination among a plurality of base stations, and transmits the RF sensing signal to at least one receiver base station based on the configuration. In an aspect, a receiver base station receives a configuration for an RF sensing signal, the configuration determined based at least in part on coordination among a plurality of base stations, receives, from at least one transmitter base station, the RF sensing signal, and detects at least one target object based, at least in part, on reception of the RF sensing signal.
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公开(公告)号：US11226411B2
公开(公告)日：2022-01-18
申请号：US16410474
申请日：2019-05-13
申请人： One Health Group
摘要： One or more aspects of this disclosure relate to the usage of an impulse radio ultra-wideband (IR-UWB) radar to reconstruct a cross-sectional image of subject in a noninvasive fashion. This image is reconstructed based on the pre- and post-processing of recorded waveforms that are collected by the IR-UWB radar, after getting reflected-off the subject. Furthermore, a novel process is proposed to approximate the different tissues' dielectric constants and, accordingly, reconstruct a subject' cross-sectional image.
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公开(公告)号：US11222547B2
公开(公告)日：2022-01-11
申请号：US17240986
申请日：2021-04-26
申请人： UAVIONIX CORPORATION
发明人： Christian Ramsey , Paul Beard
摘要： A system for intelligent non-disruptive airspace integration of unmanned aircraft systems (UAS) is disclosed. The system includes an onboard positioning system and altimeter that determine a current position and altitude of the UAS. Under normal conditions, the UAS remains in inert mode: a transceiver listens for and decodes transmissions from nearby aircraft and ground-based traffic and control facilities. If certain conditions are met (e.g., proximate aircraft, altitude ceilings, controlled or restricted airspaces) the system may declare an alert mode. When in alert mode, the transceiver broadcasts position and identifier information of the UAS to alert neighboring aircraft to its presence. Intelligent transmission strategies regulate the power level or rate of alert-mode transmissions to reduce spectrum congestion due to high UAS density. Alert-mode transmissions continue until the underlying conditions change and inert mode is resumed.
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