公开(公告)号：US20240337744A1

公开(公告)日：2024-10-10

申请号：US18297483

申请日：2023-04-07

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Jing JIANG ,  Kangqi LIU

IPC: G01S13/58 ,  G01S7/41 ,  G01S13/28 ,  G01S13/34

CPC classification number: G01S13/584 ,  G01S7/414 ,  G01S13/288 ,  G01S13/34

Abstract: Disclosed are systems and techniques for wireless communications. For example, a network device can transmit a sensing signal for sensing one or more targets. The transmitted sensing signal and at least one sensing signal transmitted by at least one other network device of the plurality of network devices includes one or more phase codes and a same frequency modulated carrier wave (FMCW). Each phase code of each sensing signal corresponds to one or more Doppler spectrum patterns. The network device can receive at least one echo signal from the one or more targets. The network device can mitigate Doppler ambiguity in a Doppler spectrum from the at least one echo signal based on the one or more Doppler spectrum patterns.

公开(公告)号：US12105184B2

公开(公告)日：2024-10-01

申请号：US17988705

申请日：2022-11-16

Applicant: TOPGOLF SWEDEN AB

Inventor： Jonny Eriksson

IPC: G01S13/62 ,  G01S7/41 ,  G01S13/58 ,  G01S13/72

CPC classification number: G01S13/62 ,  G01S13/583 ,  G01S7/415 ,  G01S13/584 ,  G01S13/723

Abstract: A method for estimating a spin of a projectile, the method comprising obtaining a first data series representing a radial velocity of a projectile over time in accordance with a radar signal reflected from the projectile, subtracting a center velocity of the first data series from the first data series to form a second data series representing a variation of the radial velocity of the projectile around the center velocity over time, dividing the second data series into respective time intervals, estimating, for each of the time intervals of the second data series, a frequency of the variation of the radial velocity of the projectile around the center velocity, and determining a spin of the projectile based on the estimated frequencies of the variation of the radial velocity of the projectile.

公开(公告)号：US20240302525A1

公开(公告)日：2024-09-12

申请号：US18662724

申请日：2024-05-13

Applicant: GM Cruise Holdings LLC

Inventor： Andre Giere ,  Özlem Karaca ,  Johanna Gütlein-Holzer ,  Richard Johann Körber

IPC: G01S13/931 ,  G01S7/02 ,  G01S7/35 ,  G01S13/34 ,  G01S13/58

CPC classification number: G01S13/931 ,  G01S7/354 ,  G01S13/343 ,  G01S13/584 ,  G01S7/0233 ,  G01S7/356

Abstract: A fast ramp frequency modulated continuous wave (FMCW) radar system (100) is described herein, where the fast ramp FMCW radar system is configured to employ velocity labeled multiplexing (VLM) in connection with generating detections for objects in a scene. Transmitters (110, 112) in the radar system are assigned different velocity labels that corresponds to different phase rates of change of consecutive chirps in signals emitted by the transmitters. Approaches for generating detections based upon echo signals that correspond to the emitted signals are also described herein.

公开(公告)号：US12078751B2

公开(公告)日：2024-09-03

申请号：US17392767

申请日：2021-08-03

Applicant: INTEL CORPORATION

Inventor： Ilia Yoffe ,  Ophir Shabtay ,  Chulong Chen ,  Thushara Hewavithana ,  Moshe Teplitsky ,  Lior Maor ,  Alon Cohen

IPC: G01S7/41 ,  G01S7/35 ,  G01S13/58 ,  G01S13/931 ,  G01S13/95

CPC classification number: G01S7/411 ,  G01S7/354 ,  G01S13/584 ,  G01S13/931 ,  G01S13/95

Abstract: Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, an apparatus may include a plurality of Transmit (Tx) antennas to transmit radar Tx signals, a plurality of Receive (Rx) antennas to receive radar Rx signals based on the Tx signals, and a processor to generate radar information based on the radar Rx signals. The apparatus may be implemented, for example, as part of a radar device, for example, as part of a vehicle including the radar device. In other aspects, the apparatus may include any other additional or alternative elements and/or may be implemented as part of any other device.

公开(公告)号：US12078748B2

公开(公告)日：2024-09-03

申请号：US17148004

申请日：2021-01-13

Applicant: UHNDER, INC.

Inventor： Ali Erdem Ertan ,  Murtaza Ali ,  Monier Maher ,  Aria Eshraghi ,  Curtis Davis

IPC: G01S7/35 ,  G01S7/02 ,  G01S7/28 ,  G01S7/32 ,  G01S7/40 ,  G01S13/34 ,  G01S13/36 ,  G01S13/42 ,  G01S13/58 ,  G01S13/87 ,  G01S13/931 ,  H01Q3/26

CPC classification number: G01S7/352 ,  G01S7/023 ,  G01S7/4004 ,  G01S13/34 ,  G01S13/584 ,  G01S13/588 ,  G01S13/931 ,  H01Q3/267 ,  G01S7/28 ,  G01S7/32 ,  G01S7/356 ,  G01S13/36 ,  G01S13/42 ,  G01S13/878 ,  G01S2013/93271 ,  G01S2013/93272

Abstract: A radar system includes an interference manager. The interference manager detects the presence and the characteristics of interfering radio signals used by other radar systems in proximity. The interference manager also controls the operating characteristics of the radar system in response to the detected interfering signal characteristics. The interference manager selects a time slot, or a frequency band, or a time slot and a frequency band to avoid or mitigate the interfering radio signals from other radar systems.

公开(公告)号：US20240280692A1

公开(公告)日：2024-08-22

申请号：US18313402

申请日：2023-05-08

Applicant: NXP B.V.

Inventor： Ryan Haoyun WU ,  Filip Alexandru ROSU

IPC: G01S13/931 ,  G01S7/35 ,  G01S13/58

CPC classification number: G01S13/931 ,  G01S7/356 ,  G01S13/584

Abstract: An automotive radar system and method are configured to transmit and receive radar signals. A first received radar signal is processed to generate a range-Doppler data frame. A first target cluster is identified at a first range in the range-Doppler data frame. A range spectrum data set associated with the first range is extracted from the range-Doppler data frame. A low-pass filter is applied to the range spectrum data set to extract a first portion of a spectrum of the range spectrum data set and an inverse fast Fourier transform (IFFT) of the first portion of the spectrum is performed to generate a time-domain set of signal magnitudes. A super-resolution spectral estimation is applied to the time-domain set of signal magnitudes to identify a first range of a first target associated with the first target cluster. The first range is transmitted to a vehicle controller.

公开(公告)号：US12038495B2

公开(公告)日：2024-07-16

申请号：US17237593

申请日：2021-04-22

Applicant: DENSO CORPORATION

Inventor： Yusuke Akamine ,  Takuya Takayama ,  Yasuyuki Miyake

IPC: G01S13/72 ,  G01S7/41 ,  G01S13/52 ,  G01S13/58 ,  G01S13/931

CPC classification number: G01S13/723 ,  G01S7/415 ,  G01S13/52 ,  G01S13/584 ,  G01S13/931

Abstract: An object tracking apparatus generates a plurality of target candidates in which ambiguity in velocity is assumed for an object detected for a first time, calculates a current prediction value of a state quantity of each target candidate from a past estimation value of the state quantity of each target candidate, using one filter among a plurality of filters, and calculates the current estimation value of the state quantity of the target candidate from each of the calculated prediction values and a current observation value that matches each prediction value. The object tracking apparatus deletes the target candidate of which a determined likelihood is less than a preset threshold among the target candidates, and switches a used filter to a filter that has a larger number of state variables among the filters, in response to the target candidate being deleted and the total number of target candidates decreasing.

公开(公告)号：US12019141B2

公开(公告)日：2024-06-25

申请号：US17451515

申请日：2021-10-20

Applicant: NXP B.V.

Inventor： Jeroen Overdevest ,  Feike Guus Jansen ,  Arie Geert Cornelis Koppelaar ,  Alessio Filippi

IPC: G01S13/532 ,  G01S7/288 ,  G01S7/40 ,  G01S13/58 ,  G01S13/87 ,  G01S13/931

CPC classification number: G01S13/532 ,  G01S7/2883 ,  G01S7/40 ,  G01S13/584 ,  G01S7/4004 ,  G01S13/878 ,  G01S2013/93271

Abstract: A radar processor for processing a frame of radar data received from one or more targets, the frame of radar data having a carrier frequency and comprising a sequence of codewords with a codeword repetition interval, wherein the carrier frequency and the codeword repetition interval define an unambiguous velocity range, the radar processor configured to: receive the frame of radar data; transform the frame to obtain a velocity data array; apply a correction algorithm to the velocity data array to correct a Doppler shift of the frame to obtain a corrected array, wherein the correction algorithm comprises a set of Doppler correction frequencies corresponding to a set of velocity gates and at least one of the set of Doppler correction frequencies corresponds to a velocity gate outside the unambiguous velocity range; and perform range processing on the corrected array to obtain a range-Doppler map.

公开(公告)号：US11994609B2

公开(公告)日：2024-05-28

申请号：US16687550

申请日：2019-11-18

Applicant: BDCM A2 LLC

Inventor： Shoaib Shafi ,  Maha Achour

IPC: G01S13/32 ,  G01S7/02 ,  G01S13/34 ,  G01S13/58 ,  G01S13/931

CPC classification number: G01S7/023 ,  G01S7/0234 ,  G01S13/325 ,  G01S13/34 ,  G01S13/584 ,  G01S13/931

Abstract: Examples disclosed herein relate to a system of object detection, the system including a continuous modulation signal unit to generate a continuous modulation signal, a code generation unit to sample, quantize and encode the continuous modulation signal to generate an encoded signal, a transmit antenna to transmit the encoded signal, and a receive antenna to receive a reflection of the encoded signal and separate the reflection of the encoded signal from other signals.

公开(公告)号：US11994576B2

公开(公告)日：2024-05-28

申请号：US17198785

申请日：2021-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Luzhou Xu ,  Ricky Lap Kei Cheung ,  Hsing Kuo Lo ,  Jianghua Ying ,  Yuan Su

IPC: G01S13/524 ,  G01S13/32 ,  G01S13/58 ,  G01S7/288 ,  G01S13/931

CPC classification number: G01S13/582 ,  G01S13/32 ,  G01S13/524 ,  G01S13/584 ,  G01S7/2883 ,  G01S13/931

Abstract: A radar system transmits pulses towards a target and receives pulses reflected back therefrom. Based on samples (of the received pulses) corresponding to a CPI, a first 2D matrix having a slow-time index and a fast-time index is generated. A slow-time FFT is performed to convert the slow-time index to a Doppler bin index to produce a second 2D matrix having the Doppler bin index and the fast-time index. Thereafter, a 1D interpolation is performed along the Doppler bin index to produce a third 2D matrix having a Velocity bin index and the fast-time index. Thereafter, a fast-time FFT is performed to convert the fast-time index to a Range bin index to produce a fourth 2D matrix having the Velocity bin index and a Range bin index. A distance to and a velocity of a target is determined based on the fourth 2D matrix.