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公开(公告)号：US20210104027A1
公开(公告)日：2021-04-08
申请号：US16593359
申请日：2019-10-04
Applicant: GM Global Technology Operations LLC
Inventor： Oren Longman , Shahar Villeval , Igal Bilik
Abstract: Systems and methods involve detecting objects using a radar system of a vehicle. Tracks of the objects are initiated in a track database. The tracks store data, respectively, for the objects and are updated based on additional detections of the objects. The tracks of the objects are initially unclassified tracks. Two tracks corresponding to two of the objects are selected as a candidate pair. Criteria are applied to the candidate pair to determine whether one track is of a ghost object and another track is of a true object corresponding with the ghost object. The ghost object represents detection of the true object in an incorrect location. The candidate pair is classified as tracks of a true object and ghost object pair based on determining that the one track is of the ghost object and the other track is of the true object corresponding with the ghost object.
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公开(公告)号：US10969466B2
公开(公告)日：2021-04-06
申请号：US16188363
申请日：2018-11-13
Applicant: GM Global Technology Operations LLC
Inventor： Oren Longman , Igal Bilik
Abstract: A system and method to detect an object with a radar system involve transmitting two or more sets of linear frequency modulated signals with a gap duration Dg, during which there is no transmission, between each of the two or more sets of the linear frequency modulated signals. Each of the two or more sets of the linear frequency modulated signals defines a sub-frame, and two or more sub-frames defines a frame. The method includes receiving reflections resulting from the linear frequency modulated signals encountering one or more objects in a field of view of the radar system, and processing the reflections to identify the one or more objects. The processing includes performing an on-off Radon transform to correct a phase bias caused by the gap duration during which there is no transmission.
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公开(公告)号：US20210048695A1
公开(公告)日：2021-02-18
申请号：US16540578
申请日：2019-08-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Tzvi Philipp , Shahar Villeval , Igal Bilik
Abstract: A device for imaging a region of interest includes a scanning assembly configured to steer a light beam incident thereon relative to a target location. The scanning assembly includes a first stationary optical device configured to control a circular polarization direction of the light beam and transmit the light beam to a second stationary optical device, and the second stationary optical device is configured to deflect the light beam to the target location. The device also includes an image sensor configured to generate an image based on the deflected light beam.
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公开(公告)号：US10921424B2
公开(公告)日：2021-02-16
申请号：US15796912
申请日：2017-10-30
Applicant: GM Global Technology Operations LLC
Inventor： Oren Longman , Shahar Villeval , Igal Bilik
Abstract: A radar system for a ground vehicle includes a MIMO system including a plurality of transmitters, a plurality of receivers, and a controller including an interpreter in communication with the plurality of transmitters and the plurality of receivers. The transmitters include a first transmitter and a plurality of second transmitters, and each of the transmitters includes a signal generator in communication with a transmitting antenna that is disposed to transmit a radar signal. Each of the radar signals is a linear-frequency-modulated continuous-wave (LFM-CW) radar signal including a chirp-start portion, and each of the receivers includes a receiving antenna that is disposed to receive reflected radar signals. The transmitters are controllable such that the chirp-start portions of the LFM-CW radar signals from the second transmitters have progressively increasing time delays as compared to the chirp-start portion of the LFM-CW radar signal from the first transmitter.
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125.发明申请公开(公告)号：US20210033691A1
公开(公告)日：2021-02-04
申请号：US16529158
申请日：2019-08-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Gaston Solodky , Oren Longman , Shahar Villeval , Igal Bilik
IPC: G01S1/24 , H04B7/0413 , G01S7/42 , G01S13/93
Abstract: A hyperbolic waveform multiple-input multiple-output radar includes a generator circuit, multiple transmit circuits, a multiple-input multiple-output antenna, and multiple receive circuits. The generator circuit may be operable to generate a linear frequency modulated signal and a hyperbolic frequency modulated signal. The transmit circuits may be operable to generate multiple transmit signals by analog mixing the linear frequency modulated signal and the hyperbolic frequency modulated signal in response to a plurality of coding family parameters, wherein the transmit signals define an orthogonal family of waveforms. The multiple-input multiple-output antenna may be operable to transmit the transmit signals toward an object and receive multiple receive signals from the object. The receive circuits may be operable to determine multiple data signals in response to the receive signals, wherein the data signals are suitable to determine a distance between the multiple-input multiple-output antenna and the object.
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Patent Agency Ranking
公开(公告)号：US20210025961A1
公开(公告)日：2021-01-28
申请号：US16522231
申请日：2019-07-25
Applicant: GM Global Technology Operations LLC
Inventor： Moshe Levy-Israel , Adi Panzer , Igal Bilik
Abstract: Embodiments include methods, systems and computer readable storage medium for a method for resolving an angle of arrival (AOA) in an antennae array is disclosed. The method includes receiving, from an antenna array of a radar system, antennae data. The method further includes receiving, by the radar system, an iteration counter value. The method further includes calculating, by the radar system, an elevation estimation and an azimuth estimation based on the antennae data and iteration counter value. The method further includes generating, by the radar system, a plurality of hypotheses based on the elevation estimation and azimuth estimation. The method further includes selecting, by the radar system, a hypothesis from the plurality of hypotheses. The method further includes storing, by the radar system, the selected hypothesis.
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公开(公告)号：US20210016744A1
公开(公告)日：2021-01-21
申请号：US16515679
申请日：2019-07-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Tzvi Philipp , Igal Bilik
Abstract: A vehicle and/or a method for detecting contaminants on an optical surface are provided. The vehicle includes at least one light source adjacent the optical surface and at least one light detector at an edge of the optical surface. A controller is configured to introduce light from at least one light source into the optical surface, and to measure light at the edge of the optical surface with at least one detector. The controller compares the measured light to a threshold, and, if the measured light crosses the threshold, triggers or implements a response action.
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公开(公告)号：US20210013606A1
公开(公告)日：2021-01-14
申请号：US16504959
申请日：2019-07-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC.
Inventor： Oren Longman , Igal Bilik
Abstract: An on-vehicle radar system is described, and includes a phased array antenna including a plurality of transmit antennas, and a corresponding plurality of transmitters, wherein each of the transmitters is in communication with a respective one of the transmit antennas. A controller is operatively connected to each of the plurality of transmitters. The controller includes an instruction set that is executable to generate a plurality of Non-Linear Frequency Modulated (NLFM) radar signals corresponding to individual ones of the plurality of transmitters. Each of the NLFM radar signals that is generated for a respective one of the transmitters is determined based upon a desired beam steering angle and a position of the respective one of the transmit antennas of the phased array antenna.
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公开(公告)号：US10852393B2
公开(公告)日：2020-12-01
申请号：US16049373
申请日：2018-07-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC , Silantrix Ltd.
Inventor： Dani Raphaeli , Igal Bilik , Oded Bialer
Abstract: A radar system and method for calibrating a radar system, the method including the steps of: measuring a set of azimuth angles of the radar system to obtain a plurality of measured azimuth array responses, wherein the radar system is physically rotated about a first axis of the radar system between each azimuth angle measurement; measuring a set of elevation angles of the radar system to obtain a plurality of measured elevation array responses, wherein the radar system is physically rotated about a second axis of the radar system between each elevation angle measurement; obtaining an azimuth calibration matrix based on the plurality of measured azimuth array responses and an elevation calibration matrix based on the plurality of measured elevation array responses; and configuring the radar system to apply the azimuth calibration matrix and the elevation calibration matrix to one or more antenna array responses.
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公开(公告)号：US10754007B2
公开(公告)日：2020-08-25
申请号：US16013090
申请日：2018-06-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shahar Villeval , Oren Longman , Igal Bilik
Abstract: A method and apparatus that compensate radar channel length variation are provided. The method includes transmitting a signal from the transmitter, determining a response of each of the receivers to the transmitted signal, and storing the determined responses; for each stored response of the stored responses, calculating a path length of the transmitted signal; for each of the transmitters, determining and storing a median receive path difference in the path length between a transmitter and each receiver; for each receiver of the receivers, determining and storing a median receive path difference in the path length between a receiver and each transmitter; and compensating for the median receive path difference and the median transmit path difference by performing a frequency shift on or time delaying a signal to be transmitted by a transmitter or received by a receiver.
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