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公开(公告)号：US11619743B2
公开(公告)日：2023-04-04
申请号：US17815573
申请日：2022-07-28
申请人： ELBIT SYSTEMS LTD.
发明人： Yoav Ophir , Dan Hakim , Assaf David , Tamir Demri
IPC分类号： G01C3/08 , G01S17/894 , G01S13/32 , G01S13/86
摘要： A system for generating a three-dimensional (3D) map of part of a field-of-view (FOV) of at least one detector of an active 3D scanner, comprising: the active 3D scanner, comprising: a mechanism configured to scan the FOV; at least one energy emitting source configured to emit energy pulses; and the at least one detector; and processing circuitry configured to: obtain information, wherein at least some of designation information is tracker-based designation information that is designated by a user of the system via a tracker that tracks a line-of-sight between the user and the FOV; selectively activate the energy emitting source to emit a subset of the energy pulses, in accordance with the information, including the tracker-based designation information, and in synchronization with the mechanism, to cover the part of the FOV; obtain current readings, from the detector, based on reflections of the subset of the energy pulses; and generate the 3D map based on the current readings.
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公开(公告)号：US11614531B2
公开(公告)日：2023-03-28
申请号：US17109317
申请日：2020-12-02
申请人： NXP USA, Inc.
发明人： Ryan Haoyun Wu , Dongyin Ren , Satish Ravindran
摘要： A co-prime coded DDM MIMO radar system, apparatus, architecture, and method are provided with a reference signal generator (112) that produces a transmit reference signal; a plurality of DDM transmit modules (11) that produce, condition, and transmit a plurality of transmit signals over which each have a different co-prime encoded progressive phase offset from the transmit reference signal; a receiver module (12) that receives a target return signal reflected from the plurality of transmit signals by a target and generates a digital signal from the target return signal; and a radar control processing unit (20) configured to detect Doppler spectrum peaks in the digital signal, where the radar control processing unit comprises a Doppler disambiguation module (25) that is configured with a CPC decoder to associate each detected Doppler spectrum peak with a corresponding DDM transmit module, thereby generating a plurality of transmitter-associated Doppler spectrum peak detections.
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公开(公告)号：US11516377B2
公开(公告)日：2022-11-29
申请号：US17353403
申请日：2021-06-21
发明人： Xiankun Hu
摘要： The present disclosure relates to a terminal, a focusing method and apparatus. The terminal includes a ranging radar configured to obtain a reference distance between a target object to be focused and a camera module, wherein an antenna radiation angle of the ranging radar covers a viewing angle of the camera module, and wherein the camera module is configured to adjust a photographing focus of the camera module to a position where the target object is located based on the reference distance.
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公开(公告)号：US11460572B2
公开(公告)日：2022-10-04
申请号：US16323491
申请日：2017-08-10
摘要： Examples of active millimeter-wave imaging systems are described which may utilize modulation schemes to provide illumination signals. The use of modulation techniques may allow for the use of direct-conversion receivers while retaining an ability to separate desired received signal from self-jamming and/or DC offset signal(s) generated by the direct-conversion receivers. In some examples, modulation schemes include the use of balanced orthogonal codes which may support MIMO or massive MIMO imaging systems.
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公开(公告)号：US20220260673A1
公开(公告)日：2022-08-18
申请号：US17622300
申请日：2019-06-28
申请人： NEC Corporation
摘要： The radar device 10 includes radar signal transmission and receiving means 11 for obtaining radar signals, based on reflected waves received by a plurality of receiving antennas, movement estimation means 12 for estimating a movement of an object that may appear in a radar image, movement discretization means 13 for discretizing the estimated movement, signal dividing means 14 for dividing the radar signals into a plurality of groups, Fourier transform processing means 15 for applying Fourier transform to the radar signals of each of the groups, phase-compensation and synthesis processing means 16 for synthesizing results of the Fourier transform after performing phase compensation corresponding to the movement of the object on the results of the Fourier transform, and imaging processing means 17 for generating the radar image from the synthesized result of the Fourier transform.
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公开(公告)号：US11378648B2
公开(公告)日：2022-07-05
申请号：US16728735
申请日：2019-12-27
申请人： FUJITSU LIMITED
发明人： Lili Xie , Jun Tian , Hongchun Li , Qian Zhao
IPC分类号： G01S7/35 , G01S13/32 , G01S13/524 , G01S13/04 , A61B5/05 , A61B5/0507 , A61B5/024
摘要： Embodiments of this disclosure provide a living object detection method and apparatus and electronic device. The apparatus includes a processor to calculate a distance matrix according to variance of Fourier transform amplitude values of radio signals received by a radio signal receiver within a determined period of time; and to calculate a distance between an object among objects and the radio signal receiver according to the distance matrix. According to this disclosure, a position of a living object among the objects may be detected based upon the distance in multiple scenarios.
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公开(公告)号：US11372086B2
公开(公告)日：2022-06-28
申请号：US16405795
申请日：2019-05-07
发明人： Sharad Sambhwani , Amichai Sanderovich , Evyatar Hemo , Evgeny Levitan , Eran Hof , Mohammad Faroq Salama , Michel Adib Sarkis , Ning Bi , Yingyong Qi
摘要： Embodiments described herein can address these and other issues by using radar machine learning to address the radio frequency (RF) to perform object identification, including facial recognition. In particular, embodiments may obtain IQ samples by transmitting and receiving a plurality of data packets with a respective plurality of transmitter antenna elements and receiver antenna elements. I/Q samples indicative of a channel impulse responses of an identification region obtained from the transmission and reception of the plurality of data packets may then be used to identify, with an autoencoder, a physical object in the identification region.
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公开(公告)号：US20220187450A1
公开(公告)日：2022-06-16
申请号：US17643149
申请日：2021-12-07
发明人： Dennis Vollbracht , Alexander Ioffe
IPC分类号： G01S13/931 , H01Q21/28 , G01S13/32 , G01S13/87
摘要： A radar device comprises a radar circuit configured to transceive first radar signals that occupy a first frequency band and second radar signals that occupy a second frequency band. An antenna device of the radar device comprises a first set and a second set of antennas and is configured to selectively transduce the first radar signals via the first set and not via the second set and to selectively transduce the second radar signals via the second set and not via the first set. A processing device of the radar device detects from the first radar signals target reflections via first propagation channels and from the second radar signals target reflections via second propagation channels. The signal processing device jointly evaluates the target reflections via the first and second propagation channels to form a common virtual antenna array for determining an angular position of a target object.
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公开(公告)号：US11355838B2
公开(公告)日：2022-06-07
申请号：US16356316
申请日：2019-03-18
发明人： Ashutosh Baheti , Marwa Abdel-Aziz , Mustafa Dogan , Muhammad Tayyab Qureshi , Saverio Trotta , Maciej Wojnowski
摘要： A packaged radar includes laminate layers, a ground plane associated with at least one of the laminate layers, a transmit antenna and a receive antenna associated with at least one of the laminate layers, and an electromagnetic band gap structure between the transmit antenna and the receive antenna for isolating the transmit antenna and the receive antenna, the electromagnetic band gap structure including elementary cells forming adjacent columns each coupled to the ground plane, and each elementary cell including a conductive planar element and a columnar element coupled to the conductive planar element.
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10.发明授权公开(公告)号：US11353576B2
公开(公告)日：2022-06-07
申请号：US17498420
申请日：2021-10-11
申请人： HG Partners, LLC
发明人： Carlos Alberto Fonts , Carlos Ernesto Fonts , Mark Allen O'Hair , John Richard O'Hair , Richard Dolan Randall
摘要： The present invention includes systems and methods for a continuous-wave (CW) radar system for detecting, geolocating, identifying, discriminating between, and mapping ferrous and non-ferrous metals in brackish and saltwater environments. The CW radar system generates multiple extremely low frequency (ELF) electromagnetic waves simultaneously and uses said waves to detect, locate, and classify objects of interest. These objects include all types of ferrous and non-ferrous metals, as well as changing material boundary layers (e.g., soil to water, sand to mud, rock to organic materials, water to air, etc.). The CW radar system is operable to detect objects of interest in near real time.
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