公开(公告)号：US12235383B2

公开(公告)日：2025-02-25

申请号：US17596656

申请日：2020-06-12

Applicant: KYOCERA Corporation

Inventor： Tooru Sahara ,  Takuya Homma ,  Satoshi Kawaji ,  Masayuki Sato ,  Youhei Murakami ,  Masamitsu Nishikido

IPC: G01S7/35 ,  G01S13/536 ,  G01S13/58 ,  G01S13/72 ,  G01S13/931

Abstract: An electronic device includes a transmission antenna that transmits a transmission wave, a reception antenna that receives a reflected wave that is the transmission wave having been reflected, and a control unit that detects a target by using a constant false alarm rate, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The control unit sets a test region and at least one or more reference regions with respect to the test region in a distribution of signal intensities based on the reception signal in a distance direction, and sets a threshold for use in detection of the target, based on an order statistic among signal intensities in the reference regions.

公开(公告)号：US12235346B2

公开(公告)日：2025-02-25

申请号：US17573177

申请日：2022-01-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Park ,  Bon Tae Koo ,  Kyung Hwan Park ,  Pil Jae Park ,  Jang Hong Choi

IPC: G01S13/536 ,  G01S7/35 ,  G01S13/58

Abstract: Disclosed is a radar device capable of operating in a dual mode, which includes a transmitter that includes a first signal generator that generates a Doppler radar signal and a second signal generator that generates a Frequency Modulated Continuous Wave (FMCW) radar signal, a receiver that receives a reflected signal reflected from a target and converts the reflected signal to a digital signal, a signal processing circuit that processes the digital signal differently depending on the dual mode to output an output signal, a signal analysis circuit that analyzes the output signal, and a controller that controls operations of the transmitter, the receiver, the signal processing circuit, and the signal analysis circuit, and the dual mode includes a first mode in which the first signal generator is activated and a second mode in which the second signal generator is activated.

公开(公告)号：US20250035748A1

公开(公告)日：2025-01-30

申请号：US18765922

申请日：2024-07-08

Applicant: Infineon Technologies AG

Inventor： Julius Ott ,  Lorenzo Servadei

IPC: G01S7/41 ,  G01S7/35 ,  G01S13/536 ,  G01S13/58

Abstract: In accordance with an embodiment, a method includes: obtaining radar data indicating a received radar signal of a radar sensor; obtaining data indicating a detection zone in which persons are to be detected; modifying the radar data for masking an undesired zone outside the detection zone; and determining, using a trained neural network, a number of persons within the detection zone based on the modified radar data

公开(公告)号：US20250012920A1

公开(公告)日：2025-01-09

申请号：US18708389

申请日：2022-11-09

Applicant: Robert Bosch GmbH

Inventor： Patrick Haecker ,  Heiko Mangold ,  Ruprecht Anz

IPC: G01S13/931 ,  B61L23/04 ,  G01S13/536

Abstract: A method for operating a rail vehicle with radar sensors arranged at both ends of the vehicle. The method includes: carrying out an object detection of upcoming obstacles and objects by operating a radar sensor in the direction of travel in normal mode, in which an obstacle detection of approaching objects ahead in the roadway is carried out based an a radar detection; detecting an approaching object, if a superimposed determined radar pulse pattern is received in the radar detection with the radar sensor in normal mode, wherein the determined radar pulse pattern corresponds to a radar pulse pattern that deviates from a radar transmission signal in normal operation.

公开(公告)号：US12189052B2

公开(公告)日：2025-01-07

申请号：US17324487

申请日：2021-05-19

Applicant: Infineon Technologies AG

Inventor： Andre Roger ,  Simon Achatz ,  Dian Tresna Nugraha ,  Ljudmil Anastasov ,  Markus Bichl ,  Mayeul Jeannin ,  Farhan Bin Khalid

IPC: G01S7/35 ,  G01S7/288 ,  G01S13/44 ,  G01S13/536 ,  G01S13/58 ,  G01S13/931

Abstract: It is suggested to process radar signals including (i) determining a variation of at least one radar parameter provided from at least one radar device; (ii) determining an estimated value of at least one radar parameter from an error compensation vector; and (iii) determining a safety condition based on the variation and the estimated value for the respective radar parameter.

公开(公告)号：US12153119B2

公开(公告)日：2024-11-26

申请号：US17455084

申请日：2021-11-16

Applicant: Carrier Corporation

Inventor： Ziyou Xiong ,  Rajeev Dubey ,  Mateusz Mazur ,  Michael Ramoutar

IPC: G01S13/56 ,  G01S7/41 ,  G01S13/536

Abstract: The present disclosure relates to detecting presence using a low-cost radar. A transmitted signal including repetitions of a transmitted signal is emitted from a transmitting antenna. A received signal including a combination of a plurality of reflections of the transmitted signal is received at receiving antennas. For each received signal, the received signal is processed to determine whether a threshold has been exceeded. When the received signal exceeds the threshold, presence due to a motion from a moving body is determined. When the received signal does not exceed the threshold, a periodicity of the received signal is measured to determine whether the periodicity of the received signal is within a vital range, and presence due to a vital sign is determined when the periodicity is within the vital range.

公开(公告)号：US20240353524A1

公开(公告)日：2024-10-24

申请号：US18305306

申请日：2023-04-21

Applicant: GM Cruise Holdings LLC

Inventor： Jessica Bartholdy SANSON ,  Johanna GÜTLEIN-HOLZER ,  Gustavo Adolfo GUARÍN ARISTIZABAL ,  Jorge Julio Jácome MUÑOZ ,  Andreas BARTHELME ,  Kalin Hristov KABAKCHIEV ,  Andre GIERE

IPC: G01S7/02 ,  G01S13/536 ,  G01S13/56

CPC classification number: G01S7/0233 ,  G01S13/536 ,  G01S13/56

Abstract: A radar system comprises a plurality of transmit antennas that transmit a radar signal toward a target, wherein respective transmit antennas are assigned a transmitter-specific phase offset via which the radar signal is modulated, and wherein respective phase offsets correspond to an offset in velocity of a target. The system further comprises a plurality of receive antennas that receive comprising transmitted signals reflected by the target, and one or more processors configured to determine whether a peak signal is present for respective transmitted signals reflected by the target, the peak signals corresponding to perceived velocities at which the target is moving.

公开(公告)号：US20240237951A1

公开(公告)日：2024-07-18

申请号：US18608281

申请日：2024-03-18

Applicant: University of Florida Research Foundation, Inc.

Inventor： Jenshan Lin ,  Linda Frances Hayward ,  Tien-yu Huang

IPC: A61B5/00 ,  A61B5/0205 ,  A61B5/024 ,  A61B5/08 ,  A61B5/113 ,  G01S7/41 ,  G01S13/536 ,  G01S13/88

CPC classification number: A61B5/725 ,  A61B5/0205 ,  A61B5/024 ,  A61B5/0816 ,  A61B5/1135 ,  A61B5/4839 ,  A61B5/7246 ,  G01S7/415 ,  G01S13/536 ,  G01S13/88

Abstract: Various examples are provided for accurate heart rate measurement. In one example, a method includes determining respiration displacement from radar-measured cardiorespiratory motion data; adjusting notch depths of a data filter based upon the respiration displacement; and identifying a heart rate from data filtered by the data filter. In another example, a system includes a computing device that can determine a respiration displacement from radar-measured cardiorespiratory motion data; wherein the computing device can adjust a data filter based upon the respiration displacement; and can identify a heart rate based on data filtered by the data filter.

公开(公告)号：US20240130637A1

公开(公告)日：2024-04-25

申请号：US18381416

申请日：2023-10-18

Applicant: Rutgers, The State University of New Jersey

Inventor： Athina Petropulu ,  Yingying Chen ,  Zhaoyi Xu ,  Chung-Tse Michael Wu ,  Cong Shi ,  Tianfang Zhang ,  Shuping Li ,  Yichao Yuan

IPC: A61B5/11 ,  A61B5/05 ,  G01S7/41 ,  G01S13/536

CPC classification number: A61B5/1126 ,  A61B5/05 ,  G01S7/415 ,  G01S13/536

Abstract: System and method for sensing movement such as chest movement of each of a plurality of target test subjects by: transmitting, at each of N transmitting antennas (TXs) of a phased multiple-input multiple-output (phased-MIMO) radar, a common frequency modulated continuous wave (FMCW) signal in each of a plurality of time division multiplex (TDM) slots, each TDM slot having associated with it a respective weight selected in accordance with a transmit steering vector configured to cause a coherent summation of transmitted signal in a desired direction θ0 toward at least one target; receiving target-reflected energy associated with the transmitted FMCW signals at a virtual array formed by stacking signal from P TDM slots received via M receiving antennas (RXs) of the phased-MIMO radar; and processing an output of the virtual array to extract therefrom signal received from the desired direction θ0 to determine thereby target movement in the desired direction θ0.

公开(公告)号：US20240053435A1

公开(公告)日：2024-02-15

申请号：US18496145

申请日：2023-10-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo CHOI ,  Jong-Sok KIM ,  Young Rae CHO

IPC: G01S7/35 ,  G01S13/536 ,  G01S13/931 ,  G01S13/58

CPC classification number: G01S7/354 ,  G01S7/356 ,  G01S13/536 ,  G01S13/931 ,  G01S13/584

Abstract: A radar signal processing method includes: extracting a first chirp sequence signal of a first carrier frequency and a second chirp sequence signal of a second carrier frequency from a radar signal received through an array antenna in a radar sensor; generating a first range-Doppler map by performing frequency conversion on the first chirp sequence signal; detecting a first target cell corresponding to a first target in the first range-Doppler map; determining a first ambiguous Doppler velocity of the first target based on first frequency information of the first target cell; determining a first range of an unambiguously measurable Doppler velocity through the first chirp sequence signal; estimating second ambiguous Doppler velocities based on the first ambiguous Doppler velocity and the first range; and determining a Doppler velocity of the first target by performing partial frequency conversion on the second chirp sequence signal based on the second ambiguous Doppler velocities.