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公开(公告)号：US20180275265A1
公开(公告)日：2018-09-27
申请号：US15467465
申请日：2017-03-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Igal Bilik , Ishai Eljarat , Shahar Villeval
CPC classification number: G01S13/723 , G01S13/931
Abstract: A vehicle, system and method for tracking an object with respect to the vehicle. A radar system receives a first plurality of detections from an object during a first time frame and a second plurality of detection during a second time frame. A region covariance matrix is calculated for a cluster formed from the first plurality of detections. An updated covariance matrix for the cluster is calculated from the region covariance matrix of the first time frame. A region covariance matrix is calculated for each of a plurality of clusters formed from the second plurality of detections. A metric is determined between the updated covariance matrix and each region covariance matrix from the second time frame. The object is tracked by associating the region covariance matrix from the second time frame having the smallest metric to the region covariance matrix of the first time frame.
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公开(公告)号：US20180252804A1
公开(公告)日：2018-09-06
申请号：US15447376
申请日：2017-03-02
Applicant: GM Global Technology Operations LLC
Inventor： Ishai Eljarat , Igal Bilik , Shahar Villeval
Abstract: A system and method to perform target tracking with a radar system that uses a Kalman filter include predicting a predicted target position of a target detected by the radar system in a frame. The frame is a period of time to transmit from every transmit element of the radar system in turn and receive the reflections from a range of the target. The method also includes determining an actual target positon of the target detected by the radar system based on reflections received by the radar system for the frame, and computing a process noise covariance matrix Q for a next frame, immediately following the frame, based on the predicted target position and the actual target position. Predicting a position of the target in the next frame is based on the process noise covariance matrix Q.
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公开(公告)号：US20180252803A1
公开(公告)日：2018-09-06
申请号：US15450532
申请日：2017-03-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Igal Bilik , Shahar Villeval , Shmuel Nedjar , Alexander Pokrass
CPC classification number: G01S13/70 , G01S7/4004 , G01S7/414 , G01S13/66 , G01S13/931 , G01S2013/9375
Abstract: A method and radar system and vehicle that tracks an object is disclosed. A source signal is transmitted into a volume that includes the object. A reflected signal is received from the volume in response to the source signal. The reflected signal includes a reflection of the source signal from the object. A range is determined for the object from the reflected signal. A ground signal is estimated at the determined range and an amount of the ground signal in the reflected signal is estimated. The object is selected for tracking based on the estimate of the amount of the ground signal in the reflection from the object.
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公开(公告)号：US20180252798A1
公开(公告)日：2018-09-06
申请号：US15450549
申请日：2017-03-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Igal Bilik , Alexander Pokrass , Shahar Villeval
CPC classification number: G01S7/4021 , G01S13/32 , G01S13/58 , G01S13/931
Abstract: A method of calibrating a radar system of a vehicle is disclosed. A source signal is transmitted from a transmitter at a target at a selected location from the radar system. An echo signal is received as a reflection of the source signal from the target at an in-phase channel and quadrature channel of a receiver. A range space for the echo signal is obtained that includes a target peak corresponding to the target, wherein the range space includes a ghost peak for the target resulting from an IQ difference between the in-phase and quadrature channels. The IQ difference between the in-phase and quadrature channels is adjusted to reduce an amplitude of the ghost frequency peak.
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公开(公告)号：US10042047B2
公开(公告)日：2018-08-07
申请号：US14856612
申请日：2015-09-17
Applicant: GM Global Technology Operations LLC
Inventor： Inna Stainvas Olshansky , Igal Bilik , Oded Bialer
Abstract: In an embodiment, a method for processing a sequence of images is provided. The method receives a sequence of images generated by a radar. Each image includes a plurality of pixels. Each pixel includes radial velocity information. The method estimates optical flow for the pixels within an image in the sequence of images by using the radial velocity information for the pixels as a constraint.
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Patent Agency Ranking
公开(公告)号：US20180156911A1
公开(公告)日：2018-06-07
申请号：US15370324
申请日：2016-12-06
Applicant: GM Global Technology Operations LLC
Inventor： Alexander Pokrass , Igal Bilik , Shahar Villeval
CPC classification number: G01S13/64 , G01S13/18 , G01S13/343 , G01S13/345 , G01S13/588 , G01S13/931
Abstract: A method and system to estimate a velocity of a target use a radar to transmit a linear frequency modulated chirp from each of a plurality of transmit elements and receive resulting reflections. The system also includes a processor to process the reflections resulting from a frame of chirps at a time and compute the velocity based on determining a number of the frames of chirps for the target to move a specified distance. The processor processes the reflections by performing a range fast Fourier transform (FFT) such that the specified distance is a range spanned by a range bin and each frame of chirps is one transmission of the chirp by each of the plurality of transmit elements.
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公开(公告)号：US20170371030A1
公开(公告)日：2017-12-28
申请号：US15190392
申请日：2016-06-23
Applicant: GM Global Technology Operations LLC
Inventor： Alexander Pokrass , Igal Bilik , Shahar Villeval
CPC classification number: G01S13/0209 , G01S13/325 , G01S13/343 , G01S13/867 , G01S13/931 , G01S2013/9375
Abstract: A multi-input multi-output (MIMO) radar system and method of performing low-latency decoding in a MIMO radar system. The method includes transmitting a different linear frequency-modulated continuous wave (LFM-CW) transmit signal from each of N transmit elements of the MIMO radar system, each transmit signal associated with teach of the N transmit elements including a respective code, and receiving reflections associated with each of the transmit signals from each of the N transmit elements at each receive element of the MIMO radar system. Processing each symbol corresponding with each received reflection on a symbol-by-symbol basis is done to obtain a respective decoded signal prior to receiving all the received reflections associated with all the N transmit elements, wherein the processing includes using a Hadamard matrix with N columns in which each column is associated with the respective code transmitted by each of the N transmit elements.
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公开(公告)号：US09747917B2
公开(公告)日：2017-08-29
申请号：US13918752
申请日：2013-06-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Eli Tzirkel-Hancock , Igal Bilik , Moshe Laifenfeld
IPC: G10L21/00 , G10L15/00 , G10L21/0208 , H04R3/00 , G01S13/06 , G01S15/06 , G10L21/0216
CPC classification number: G10L21/00 , G01S13/06 , G01S15/06 , G10L15/00 , G10L21/0208 , G10L2021/02166 , H04R3/005 , H04R2201/401 , H04R2201/405 , H04R2430/25
Abstract: Methods and systems are provided for receiving desired sounds. The system includes a position sensor configured to determine an occupant position of an occupant engaging in speech within a defined space and transmit the speaking occupant position. A plurality of microphones are configured to receive sound from within the defined space and transmit audio signals corresponding to the received sound. A processor, in communication with the position sensor and the microphones, is configured to receive the speaking occupant position and the audio signals, apply a beamformer to the audio signals to direct a microphone beam toward the occupant position, and generate a beamformer output signal.
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公开(公告)号：US09747804B1
公开(公告)日：2017-08-29
申请号：US15190401
申请日：2016-06-23
Applicant: GM Global Technology Operations LLC
Inventor： Igal Bilik , Shahar Villeval , Eli Tzirkel-Hancock
Abstract: A system and method perform object detection-based directional control of light transmission or sound transmission from a moving platform. The method includes receiving information about one or more objects that are proximate to the platform, and processing the information to obtain processed information, the processed information including a location of each of the one or more objects. Determining an importance and urgency among the one or more objects with regard to the light transmission or the sound transmission is based on the processed information. Controlling a light source or a sound source of the platform to respectively perform the light transmission or the sound transmission is based on the importance and the urgency.
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公开(公告)号：US20170222332A1
公开(公告)日：2017-08-03
申请号：US15409865
申请日：2017-01-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Oded Bialer , Igal Bilik
Abstract: A method is disclosed for optimizing an angular resolution across a field-of view for an antenna array having a plurality of antenna elements positioned along a curved surface. The method includes selecting a position along the curved surface for a first antenna element in the plurality of antenna elements and calculating subsequent positions for each of the remaining plurality of antenna elements on the antenna array, wherein the subsequent positions are determined relative to the position of the first antenna element and wherein the subsequent positions represent positions at which a maximum angular resolution is achieved for all angles in the field-of-view.
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