公开(公告)号：US20240361425A1

公开(公告)日：2024-10-31

申请号：US18139250

申请日：2023-04-25

申请人： Avago Technologies Intemational Sales Pte. Limited

发明人： Mohyee MIKHEMAR ,  Alvin Lai LIN ,  Ahmed SAYED ,  Wei-Hong CHEN ,  Sudharshan SRINIVASAN ,  Arya BEHZAD ,  Andrew J. BLANKSBY ,  Tirdad SOWLATI

IPC分类号： G01S7/28 ,  G01S7/484

CPC分类号： G01S7/2806 ,  G01S7/484

摘要： A device includes a port and a transformer. The transformer includes a first coil that has a first node and a second node and a second coil that is coupled to the output port. The device also includes a pulse generator coupled to the first node to generate two or more pulses with a first period on the first node and a delay module that is coupled between the second node of the first coil and the pulse generator. The delay module is generates a time delay to the two or more pulses of the pulse generator before the two or more pulses are delivered to the second node. The second coil provides a signal at the port.

公开(公告)号：US11994610B1

公开(公告)日：2024-05-28

申请号：US18533427

申请日：2023-12-08

申请人： Anhui University

发明人： Liping Li ,  Lei He ,  Yingsong Li ,  Canping Yu ,  Run Ying

IPC分类号： G01S7/28 ,  G01S3/38 ,  G01S7/35 ,  G06F17/15 ,  G06F17/16

CPC分类号： G01S7/2813 ,  G01S3/38 ,  G01S7/356 ,  G06F17/156 ,  G06F17/16

摘要： The disclosure provides a Lorentz constraint angle estimation method and a system in a non-Gaussian environment; the method includes the following steps: constructing an N-time slot received signal model based on a non-Gaussian noise environment to obtain a reflected signal; constructing a cost model based on Lorentz norm by a difference value between an actual received signal and the reflected signal, and performing an angle estimation by combining with an atomic norm to obtain a signal sparse reconstruction model; constructing an augmented Lagrangian function by the signal sparse reconstruction model, and carrying out the iterative update on the augmented Lagrangian function to obtain a reconstructed signal; and analyzing the reconstructed signal and searching spectral peaks globally to obtain spatial spectral peak points, and completing an angle estimation of the reconstructed signal.

公开(公告)号：US20240151842A1

公开(公告)日：2024-05-09

申请号：US18266339

申请日：2022-08-18

申请人： SHANGHAI JIAO TONG UNIVERSITY

发明人： Yuyong XIONG ,  Zhike PENG

IPC分类号： G01S13/42 ,  G01S7/28 ,  G01S7/35 ,  G01S13/34

CPC分类号： G01S13/426 ,  G01S7/2813 ,  G01S7/352 ,  G01S13/342

摘要： A scanning method and system for measuring microwave vibration and deformation include simultaneously transmitting linear-frequency-modulation continuous waves by using a plurality of transmit antennas and enabling a main lobe of a synthesized beam to be directed towards a specific angle direction; receiving echoes by using a plurality of receive antennas to obtain vibration and deformation displacement values of a single target or multiple targets in an angle direction 1 of a cycle; through the phase shift control on the plurality of transmit antennas, extracting vibration and deformation displacement values of a single target or multiple targets in an angle direction 2 of the cycle based on the foregoing method; according to a measurement requirement, measuring and extracting vibration and deformation displacement values of a single target or multiple targets in another angle direction of the cycle; and obtaining vibration and deformation displacement time sequence values of all scanned points.

公开(公告)号：US11947000B2

公开(公告)日：2024-04-02

申请号：US17833081

申请日：2022-06-06

申请人： Fortem Technologies, Inc.

发明人： Adam Eugene Robertson ,  Jon Erik Knabenschuh ,  Lyman Davies Horne ,  Tyler Drue Park ,  Matthew Robertson Morin ,  James David Mackie ,  Matthew Elliott Argyle ,  Bryan Alan Davis ,  Chester Parker Ferry ,  Daniel Glen Bezzant ,  Justin Craig Huntington ,  Nathan James Packard

IPC分类号： G01S13/87 ,  G01S7/28 ,  G01S13/00 ,  G01S13/04

CPC分类号： G01S13/872 ,  G01S7/2813 ,  G01S13/003 ,  G01S13/04

摘要： Systems, methods, and computer-readable media are described for compact radar systems. In some examples, a compact radar system can include a first set of transmit antennas, a second set of receive antennas, one or more processors, and at least one computer-readable storage medium storing computer-executable instructions which, when executed by the one or more processors, cause the radar system to coordinate digital beam steering of the first set of transmit antennas and the second set of receive antennas, and coordinate digital beam forming with one or more of the second set of receive antennas to detect one or more objects within a distance of the radar system.

公开(公告)号：US20240094335A1

公开(公告)日：2024-03-21

申请号：US18526250

申请日：2023-12-01

申请人： Texas Instruments Incorporated

发明人： Shankar Ram NARAYANA MOORTHY ,  Karthik SUBBURAJ ,  Shailesh JOSHI ,  Piyush SONI

IPC分类号： G01S7/28 ,  G01S7/35

CPC分类号： G01S7/2813 ,  G01S7/352

摘要： Non-transitory computer-readable mediums and systems are provided in which a portion of each chirp of a series of chirps is held at an offset frequency for a period of time, and in which the offset frequency, the period of time or both is varied or dithered across the chirps of the series of chirps. The portion of a chirp that is held at an offset frequency for a period of time may be a non-active portion of the chirp, during which the chirp is not sampled. In some implementations, the portion of a chirp that is held at an offset frequency for a period of time is during a falling portion of the chirp, which may be at the beginning of the falling portion, or at the end of the falling portion immediately before a rise portion of a succeeding chirp.

公开(公告)号：US11916300B2

公开(公告)日：2024-02-27

申请号：US17628136

申请日：2020-07-08

申请人： THALES

发明人： Wilfried Greverie ,  Jean-Pierre Marcy ,  Ronan Moulinet

IPC分类号： H01Q21/29 ,  G01S7/28 ,  H01Q3/26 ,  H01Q21/22

CPC分类号： H01Q21/29 ,  G01S7/2813 ,  H01Q3/26 ,  H01Q21/22

摘要： An array antenna includes a plurality of mechanically separate radiating panels arranged side-by-side, means for applying a shaping to the signals transmitted by the radiating elements of the panels and a device for managing the shaping of the signals, wherein the shaping coefficients correspond to a sum of at least: a shaping coefficient (Wco) making it possible to orient the maximum gain of the antenna in a given direction, and at least the opposite of a shaping coefficient (Wc) making it possible to orient the maximum gain of the antenna in the direction of a side lobe resulting from differences between the radiating panels of the array antenna. The method relates also to the associated transmission/reception method.

公开(公告)号：US11906660B2

公开(公告)日：2024-02-20

申请号：US17005788

申请日：2020-08-28

申请人： NVIDIA Corporation

发明人： Tilman Wekel ,  Sangmin Oh ,  David Nister ,  Joachim Pehserl ,  Neda Cvijetic ,  Ibrahim Eden

IPC分类号： G01S7/00 ,  G01S7/48 ,  G01S17/894 ,  G01S7/481 ,  G01S17/931 ,  G06V10/764 ,  G06V10/80 ,  G06V10/82 ,  G06V20/58 ,  G01S7/28

CPC分类号： G01S7/4802 ,  G01S7/481 ,  G01S17/894 ,  G01S17/931 ,  G06V10/764 ,  G06V10/80 ,  G06V10/82 ,  G06V20/58 ,  G01S7/28

摘要： In various examples, a deep neural network (DNN) may be used to detect and classify animate objects and/or parts of an environment. The DNN may be trained using camera-to-LiDAR cross injection to generate reliable ground truth data for LiDAR range images. For example, annotations generated in the image domain may be propagated to the LiDAR domain to increase the accuracy of the ground truth data in the LiDAR domain—e.g., without requiring manual annotation in the LiDAR domain. Once trained, the DNN may output instance segmentation masks, class segmentation masks, and/or bounding shape proposals corresponding to two-dimensional (2D) LiDAR range images, and the outputs may be fused together to project the outputs into three-dimensional (3D) LiDAR point clouds. This 2D and/or 3D information output by the DNN may be provided to an autonomous vehicle drive stack to enable safe planning and control of the autonomous vehicle.

公开(公告)号：US11892556B2

公开(公告)日：2024-02-06

申请号：US17554364

申请日：2021-12-17

申请人： Electronics and Telecommunications Research Institute

发明人： Hyung Jung Kim ,  Min Soo Kang ,  Sang In Cho

IPC分类号： G01S7/28 ,  G01S13/42 ,  G01S13/933

CPC分类号： G01S7/2813 ,  G01S13/428 ,  G01S13/933

摘要： Disclosed is a method and apparatus for generating a radar signal, in which performance of radar detection is ensured while increasing a spectrum efficiency in a radar network. The method comprises generating a set of frequency-modulation waveforms, generating an orthogonal code set, generating a set of coded frequency-modulation waveforms through element operation between the set of frequency-modulation waveforms and the orthogonal code set, calculating an objective function for the set of frequency-modulation waveforms with regard to a different set of coded frequency-modulation waveforms and previous sets of coded frequency-modulation waveforms, and selecting a current polyphase code set as an optimized polyphase code set when a result of current calculation is better or smaller than a result of previous iteration, and performing phase perturbation by replacing an element randomly selected in the current polyphase code set selected as the optimized polyphase code set with another admissible-phase element.

公开(公告)号：US11867830B2

公开(公告)日：2024-01-09

申请号：US16776393

申请日：2020-01-29

申请人： Metawave Corporation

发明人： Taha Shahvirdi Dizaj Yekan

IPC分类号： G01S7/28 ,  G01S13/44 ,  G01S7/41 ,  G01S13/931 ,  G01S13/42

CPC分类号： G01S7/2813 ,  G01S7/41 ,  G01S13/426 ,  G01S13/44 ,  G01S13/931

摘要： Examples disclosed herein relate to a beam steering vehicle radar for object identification. The radar includes a radar module having at least one beam steering transmit antenna to radiate one or more radio frequency (“RF”) beams in a plurality of directions, at least one beam steering receive antenna to receive one or more RF return signals, and a transceiver to generate radar data capturing a surrounding environment from the one or more received RF return signals. The radar also includes a perception module configured to detect and identify an object in the surrounding environment from the radar data. At least one of the beam steering transmit antenna has a side lobe reduction mechanism formed within a substrate to reduce side lobes in the radiated one or more RF beams.

公开(公告)号：US11835647B2

公开(公告)日：2023-12-05

申请号：US17164330

申请日：2021-02-01

申请人： KMB Telematics, Inc.

发明人： Bryan Cattle ,  Marco La Manna

IPC分类号： G01S7/41 ,  G01S7/28 ,  G01S7/282 ,  G01S13/931

CPC分类号： G01S7/411 ,  G01S7/282 ,  G01S7/2806 ,  G01S13/931 ,  G01S2013/9318 ,  G01S2013/9319 ,  G01S2013/93185

摘要： Systems, methods, and computer-readable media for performing radar operations based on characteristics of a target. First operational limits defining a limit of a detection operation, imaging operation, or some combination thereof can be identified. The first operational limits can be associated with first operational values of operational parameters. Radar waveform parameters to optimize can be identified. Further, first optimal values for the radar waveform parameters can be identified based on the first operational values associated with the first operational limits. Additionally, a first optimized radar signal can be generated using the first optimal values of the radar waveform parameters. The first optimized radar signal can be optimized for the first operational limits. As follows, the first optimized radar signal can be transmitted towards a target area.