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1.发明公开公开(公告)号：US20240353527A1
公开(公告)日：2024-10-24
申请号：US18304585
申请日：2023-04-21
发明人： Dyson Wilkes , David Addison , Markus Bichl
CPC分类号： G01S7/356 , G01S7/411 , G01S13/584
摘要： Some aspects of the present disclosure relate to baseband processor for radar. The baseband processor includes a Doppler fast Fourier transform (FFT) circuit having an input and an output. An integration circuit has an input coupled to the output of the Doppler FFT circuit. A target detection circuit has an input coupled to an output of the integration circuit. The Doppler FFT circuit, the integration circuit, and the target detection circuit are each disposed on a silicon substrate, and the target detection circuit is arranged in series with the integration circuit and in series with the target detection circuit.
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公开(公告)号：US20240337741A1
公开(公告)日：2024-10-10
申请号：US18294575
申请日：2022-08-12
申请人： Veoneer Sweden AB
IPC分类号： G01S13/34 , G01S7/35 , G01S13/58 , G01S13/87 , G01S13/931
CPC分类号： G01S13/34 , G01S7/352 , G01S13/584 , G01S13/872 , G01S13/931
摘要： An automotive radar system (100) including first and second radar sensors (110, 120) transmitting a radar signal, and a processor (130). Each radar sensor (110, 120) determines ranges to one or more targets (140), where each determined range is associated with a complex value (Vmn) in a range vector. The processor (130) determines a difference in the ranges determined by the first and second radar sensors (110, 120). The processor (130) converts the difference in ranges to an intermediate frequency, IF, phase value ( IF) by relating the difference in ranges to the radar bandwidth (BW). The processor (130) adjusts the complex values (Vmn) in the range vectors by the IF phase value (ϕIF) and determines an angle (a) to at least one of the targets (140) based on the adjusted complex values in the range vectors from each radar sensor (110, 120).
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公开(公告)号：US12111392B2
公开(公告)日：2024-10-08
申请号：US17448609
申请日：2021-09-23
发明人： Andre Roger , Farhan Bin Khalid , Mayeul Jeannin , Markus Bichl
IPC分类号： G01S13/89 , G01S13/58 , G01S13/931
CPC分类号： G01S13/89 , G01S13/584 , G01S13/931
摘要： The present disclosure relates to a concept for detecting radar targets. A plurality of first receive signals is received from first antennas of an antenna array. A first combined range-Doppler map is determined by combining range-Doppler maps of each of the first antennas. First confirmable range-Doppler cells of the first combined range-Doppler map are determined which match a predetermined confirmation criterion. A plurality of second receive signals is received from second antennas of the antenna array. A second combined range-Doppler map is determined by combining range-Doppler maps of each of the second antennas. Second confirmable range-Doppler cells of the second combined range-Doppler map are determined which match the predetermined confirmation criterion. The first and second confirmable range-Doppler cells are combined to obtain a set of confirmable range-Doppler cells. Values of the first and the second combined range-Doppler maps corresponding to the set of confirmable range-Doppler cells are summed to obtain summed values of the combined confirmable range-Doppler cells. Summed values of the total confirmable range-Doppler cells exceeding a predefined selection threshold are selected for target detection.
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公开(公告)号：US12111387B2
公开(公告)日：2024-10-08
申请号：US17345039
申请日：2021-06-11
发明人： Mu Zhou , Jinnan Liu , Chen Yang
IPC分类号： G01S13/58 , G01S7/35 , G01S13/00 , G01S13/931
CPC分类号： G01S13/584 , G01S13/003 , G01S13/931 , G01S7/356
摘要： Embodiments of this application disclose a signal processing method, a radar system, and a vehicle. The method is applied to a radar system including an array antenna. The method includes: sequentially transmitting signals according to a first transmission sequence through M transmit antennas, where the first transmission sequence is different from a sequence that is formed by arranging the M transmit antennas based on spatial locations; receiving, through N receive antennas, echo signals that are formed after a target reflects the transmitted signals, where M and N are positive integers, and M is greater than 2; and measuring a parameter of the target based on the echo signals. According to the embodiments of this application, correlation between space and a Doppler phase shift is reduced by changing a switching order of transmit antennas.
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公开(公告)号：US20240329199A1
公开(公告)日：2024-10-03
申请号：US18619216
申请日：2024-03-28
申请人： HL KLEMOVE CORP.
发明人： Jingu LEE , Junghwan CHOI
CPC分类号： G01S7/354 , G01S7/356 , G01S13/584
摘要： A device for processing a radar signal may include a pre-acquisition unit configured to, during a first period within one scan period, perform two fast Fourier transforms (FFTs) on a first signal, perform digital beamforming or non-coherent integration and peak extraction, and determine a bin-rejection mask based on extracted peaks, and a normal-acquisition unit configured to, during a second period longer than the first period after the first period within the scan period, perform two FFTs on a second signal different from the first signal, perform digital beamforming or non-coherent integration and peak extraction, determine a Doppler component of a target, determine a virtual channel vector, and acquire information on the target based on the virtual channel vector.
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公开(公告)号：US12105190B2
公开(公告)日：2024-10-01
申请号：US16491815
申请日：2018-03-09
IPC分类号： A01D41/127 , A01D41/12 , G01S13/58 , G01S13/88
CPC分类号： G01S13/88 , A01D41/1243 , A01D41/1271 , G01S13/584
摘要： A monitoring system for a combine harvester having a header for harvesting a crop and a residue spreading system for spreading a crop residue. The monitoring system includes a sensing system configured to provide one or more measurement waves that intersect a flow of crop residue discharged by the spreading system and receive a plurality of response waves reflected from the crop residue. The system further includes a processing unit configured to receive a response signal of the sensing system; process the response signal; and determine, based on the response signal, a density and velocity distribution of the crop residue across a two-dimensional measurement area. The response signal is representative of the plurality of response waves reflected from the crop residue. The measurement area is at an end of a trajectory of the crop residue towards a deposit area.
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公开(公告)号：US20240310505A1
公开(公告)日：2024-09-19
申请号：US18123041
申请日：2023-03-17
申请人： NXP B.V.
发明人： Nikita Petrov
CPC分类号： G01S13/584 , G01S7/356 , G01S7/4815 , G01S13/282
摘要： A system includes first and second transmitters, a receiver, a processor, and a non-transitory computer-readable medium. The processor causes the first and second transmitters to transmit first and second chirp signals, respectively. The second chirp signal has an in-band frequency offset in fast-time and slow-time and at least one of a carrier frequency offset in slow-time and a phase offset relative to the first chirp signal. The processor causes the receiver to receive reflections of the chirp signals off of objects in the environment, resulting in a received radar signal. The processor performs a range fast Fourier transform (FFT) and a Doppler FFT on the received radar data to obtain a range-Doppler-antenna data cube. The processor performs range-Doppler alignment of reflections of the first and second chirp signals and phase correction based on the phase offset. The processor then performs digital beamforming.
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公开(公告)号：US20240310485A1
公开(公告)日：2024-09-19
申请号：US18584629
申请日：2024-02-22
发明人： Max Sponner , Lorenzo Servadei , Bernd Waschneck
CPC分类号： G01S7/417 , G01S13/581
摘要： In accordance with an embodiment, a method, includes: obtaining a plurality of radar measurement frames; and processing, in a deep neural network, inputs to the deep neural network, the inputs being based on the plurality of radar measurement frames, The processing includes: providing an estimate of a target observable using a processing pipeline of the deep neural network, where the processing pipeline comprises a plurality of layers; and providing early-exit estimates of the target observable using respective early-exit branches of the deep neural network, where two or more layers of the plurality of layers are coupled with the respective early-exit branches of the deep neural network.
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9.发明公开公开(公告)号：US20240310479A1
公开(公告)日：2024-09-19
申请号：US18280110
申请日：2022-02-23
发明人： Lars Weisgerber , Mario Schuehler
CPC分类号： G01S7/2886 , G01S7/2883 , G01S13/0209 , G01S13/582 , H04L25/0212
摘要： An ultra-wideband sensor transmits impulse radio signals at different times and generates respective channel impulse responses that describe a respective reflected signal as a function of a path delay. The channel impulse responses are used to generate a time-variant channel impulse response in which the channel impulse responses are arranged according to the times of transmission of the respective associated impulse radio signals. At least one respective local maximum of the scatter function quantity, characterized by a respective Doppler frequency and a respective path delay, is detected in scatter functions of respective time windows. A predetermined selection method is used to select at least one local maximum as the respective observation maximum to be tracked for motion detection. A signal characteristic of the channel impulse response is generated for the respective observation maximum to be tracked and a predetermined motion detection method detects at least one predetermined movement.
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公开(公告)号：US12092734B2
公开(公告)日：2024-09-17
申请号：US17644464
申请日：2021-12-15
发明人： Simon Roesler , Adrian Becker , Jan K. Schiffmann
IPC分类号： G01S13/931 , G01S3/02 , G01S13/58 , G01S13/89 , G06N3/02
CPC分类号： G01S13/931 , G01S13/58 , G01S13/89 , G06N3/02
摘要： This document describes techniques and systems for a partially-learned model for speed estimates in radar tracking. A radar system is described that determines radial-velocity maps of potential detections in an environment of a vehicle. The model uses a data cube to determine predicted boxes for the potential detections. Using the predicted boxes, the radar system determines Doppler measurements associated with the potential detections that correspond to the predicted boxes. The Doppler measurements are used to determine speed estimates for the predicted boxes based on the corresponding potential detections. These speed estimates may be more accurate than a speed estimate derived from the data cube and the model. Driving decisions supported by the speed estimates may result in safer and more comfortable vehicle behavior.
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