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公开(公告)号：US12130378B2
公开(公告)日：2024-10-29
申请号：US17572714
申请日：2022-01-11
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Pankaj Gupta , Karthik Ramasubramanian
CPC classification number: G01S7/352 , G06F17/142 , H04L27/265 , G01S7/356 , G06F17/141 , G06F17/16 , H04L27/263
Abstract: A system includes a hardware accelerator configured to perform a two-dimensional (2D) fast Fourier transform (FFT) on an M×N element array. The hardware accelerator has log2 M×N pipeline stages including an initial group of log2 M stages and a final group of log2 N stages. Each stage includes a butterfly unit, a FIFO buffer coupled to the butterfly unit, and a multiplier coupled to the butterfly unit and to an associated twiddle factor table. The hardware accelerator also includes butterfly control logic to provide elements of the M×N element array to the initial group of stages in an N direction of the array, and twiddle factor addressing logic to, for the twiddle factor tables of the initial group of stages, apply an indexed entry of the twiddle factor table to the associated multiplier. The indexed entry begins as a first entry and advances by N entries after every N cycles.
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公开(公告)号：US20240353553A1
公开(公告)日：2024-10-24
申请号：US18608700
申请日：2024-03-18
Applicant: MobilEye Vision Technologies Ltd.
Inventor： Daniel Gudinetsky , Moshe Teplitsky , Adi Panzer , Ilia Yoffe , Alon Cohen
IPC: G01S13/58 , G01S7/03 , G01S7/35 , G01S13/34 , G01S13/931
CPC classification number: G01S13/584 , G01S7/032 , G01S7/356 , G01S13/343 , G01S13/931
Abstract: For example, a processor may be configured to process Range-Doppler (RD) information corresponding to an RD bin to identify a first plurality of values corresponding to a first plurality of virtual antennas of a virtual antenna array and a second plurality of values corresponding to a second plurality of virtual antennas of the virtual antenna array. For example, the RD information corresponding to the RD bin may be based on radar Receive (Rx) signals received by a plurality of Rx antennas based on radar Transmit (Tx) signals from a Tx array including a first plurality of Tx antennas and a second plurality of Tx antennas. For example, the processor may be configured to determine one or more estimated RD-Azimuth (RDAz) based (RDAz-based) Doppler folds corresponding to one or more RDAz bins, for example, based on the first plurality of values and the second plurality of values.
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公开(公告)号：US12123970B2
公开(公告)日：2024-10-22
申请号：US17484119
申请日：2021-09-24
Applicant: NXP B.V.
Inventor： Ryan Haoyun Wu , Dongyin Ren , Satish Ravindran
CPC classification number: G01S7/354 , G01S13/584 , G01S7/356
Abstract: Aspects of the present disclosure are directed to radar and radar processing. As may be implemented in accordance with one or more embodiments involving multi-input multi-output (MIMO) co-prime radar signals transmitted by a plurality of transmitters and reflected from at least one target, the reflected radar signals are processed by resolving ambiguities associated with a range-Doppler detection based on unique pulse repetition frequencies (PRF)s associated with respective chirp groups of the reflected radar signals. Phase compensation is applied to compensate for motion-induced phased biases and, thereafter, Doppler estimates are reconstructed to provide a dealiased version of the reflected radar signals.
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公开(公告)号：US20240335140A1
公开(公告)日：2024-10-10
申请号：US18682674
申请日：2022-08-05
Inventor： Gabriel TEDGUE BELTRAO , Udo SCHRÖDER , Dimitri TATARINOV , Wallace ALVES MARTINS , Mohammad ALAEEKERAHROODI , Bhavani Shankar MYSORE RAMA RAO
CPC classification number: A61B5/1126 , A61B5/05 , A61B5/1102 , A61B5/113 , A61B5/6893 , G01S7/356
Abstract: A radar system for vital signs monitoring such as at least heart rate or breathing and a method for mitigating random body movement and external interference effects in vital signs monitoring such as at least heart rate or breathing by employing a radar system that is configured for providing in-phase and quadrature signals from reflected and received radar waves are provided. The problem of random body movement effects and external interference affecting vital signs monitoring is at least mitigated by decomposing and filtering a reconstructed displacement signal using a time and frequency analysis technique such as Short-Time Fourier Transform (STFT), followed by a Non-negative Matrix Factorization (NMF) operation. This decomposition allows the identification of time and frequency basis components containing the random body movement interference. Hence, the filtered signal can be reconstructed after removing the random body movement components, thus enabling reliable and robust vital-signs parameter estimation.
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公开(公告)号：US20240319332A1
公开(公告)日：2024-09-26
申请号：US18574713
申请日：2022-06-29
Applicant: Intel Corporation
Inventor： Oren Shalita , Moshe Teplitsky , Sharon Heruti , Alon Cohen , Ophir Shabtay , Ilia Yoffe , Roy Sofer , Merav Sicron
IPC: G01S7/40 , G01S7/35 , G01S13/58 , G01S13/931
CPC classification number: G01S7/4008 , G01S7/356 , G01S13/584 , G01S13/931
Abstract: For example, an apparatus may include a scheduler configured to determine scheduling information to schedule radar transmissions of a radar device during a sequence of radar frames. For example, the scheduler may be configured to determine a burst-based frame setting to schedule a sequence of radar burst transmissions during a radar frame of the sequence of radar frames. In one example, the burst-based frame setting may include a setting of a burst gap duration. In one example, the burst gap duration may include a duration of a burst gap between first and second consecutive radar burst transmissions of the sequence of radar burst transmissions.
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Patent Agency Ranking
公开(公告)号：US20240311320A1
公开(公告)日：2024-09-19
申请号：US18183317
申请日：2023-03-14
Applicant: Infineon Technologies AG
Inventor： David Addison , Dyson Wilkes , Markus Bichl
CPC classification number: G06F13/28 , G01S13/58 , G01S7/285 , G01S7/356 , G06F2213/28
Abstract: A radar system includes a radio frequency (RF) receiver configured to receive radar data at a plurality of receive antennae. A fast Fourier transform (FFT) circuit is coupled to the RF receiver. The FFT circuit is configured to perform a FFT on the radar data to provide a stream of complex values. The stream of complex values includes a plurality of Range-Doppler coordinate pairs that pertain to the plurality of receive antennae. A memory is coupled to the FFT circuit. The memory is configured to store three-dimensional (3D) radar data. A Direct Memory Access circuit (DMA) is coupled to the memory.
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公开(公告)号：US20240310480A1
公开(公告)日：2024-09-19
申请号：US18183292
申请日：2023-03-14
Applicant: Infineon Technologies AG
Inventor： David Addison , Dyson Wilkes , Markus Bichl , Sandeep Vangipuram
CPC classification number: G01S7/354 , G01S7/356 , G01S13/584
Abstract: A radar system including a direct memory access (DMA). The DMA includes a bus interface including control/status registers and data-in/data-out registers. The DMA also includes potential object queue memory coupled to the bus interface, and a potential object queue logic coupled to the potential object queue memory. The DMA also includes boundary checking circuitry configured to detect whether any portion of a DMA read configuration is greater than a maximum range bin or less than a minimum range bin. The boundary checking circuitry detects whether any portion of the DMA read configuration is greater than a maximum Doppler bin or less than a minimum Doppler bin.
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公开(公告)号：US20240248171A1
公开(公告)日：2024-07-25
申请号：US18413280
申请日：2024-01-16
Applicant: Infineon Technologies AG
Inventor： Mayeul Jeannin , Farhan Bin Khalid , Dian Tresna Nugraha , Andre Roger
CPC classification number: G01S7/4008 , G01S7/354 , G01S7/356
Abstract: A method for calibrating a transmitter of a plurality of transmitters of a radar system is provided. The method includes setting the radar transmitter to be calibrated to a first Doppler Division Multiplexing (DDM) pattern and associating each of the other transmitters in the plurality with a respective second DDM pattern. A target is detected by performing radar detection with the plurality of transmitters, wherein the transmitter is operated with the first DDM pattern and each of the other transmitters is operated with its associated second DDM pattern, extracting Doppler Fourier transform coefficients for a Doppler spectrum peak corresponding to the target and for spurs associated with the peak, applying an inverse discrete Fourier transform to the extracted Doppler Fourier transform coefficients, detecting a phase error of the transmitter using a result of the inverse discrete Fourier transform and calibrating the transmitter according to the detected phase error.
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公开(公告)号：US12044796B2
公开(公告)日：2024-07-23
申请号：US17188106
申请日：2021-03-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiangbing Feng , Yueqin Yu , Xueming Peng , Qi Chen
Abstract: A method and apparatus for identifying behavior of a target, and a radar system applied to an automated driving scenario include receiving a radar echo signal from a target, processing the radar echo signal to obtain time-frequency domain data, processing the time-frequency domain data to obtain signal attribute feature data representing a first feature of a radar echo signal attribute and linear prediction coefficient (LPC) feature data representing a second feature of the radar echo signal, inputting the signal attribute feature data and the LPC feature data into a behavior identification model, and outputting behavior information of the target.
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公开(公告)号：US12038503B2
公开(公告)日：2024-07-16
申请号：US17394383
申请日：2021-08-04
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 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 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.
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