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公开(公告)号：US10983205B2
公开(公告)日：2021-04-20
申请号：US16052940
申请日：2018-08-02
Applicant: GM Global Technology Operations LLC
Inventor： Oren Longman , Shahar Villeval , Igal Bilik
IPC: G01S13/34 , H01Q1/32 , G01S13/931 , G01S7/03 , H04L29/08
Abstract: A radar system includes one or more antennas to emit transmit signals and receive reflected signals resulting from reflection of the transmit signals by an object. The transmit signals are linear frequency modulated continuous wave (LFMCW) signals. The radar system also includes a transmission generator to generate the transmit signals. The transmission generator includes a controller to control output of a first of the transmit signals and a second of the transmit signals in succession. A time between transmission of the first of the transmit signals and the second of the transmit signals is less than a duration of a stabilization period of a first oscillator used to generate the first of the transmit signals.
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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：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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35.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：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：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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公开(公告)号：US20200041610A1
公开(公告)日：2020-02-06
申请号：US16052922
申请日：2018-08-02
Applicant: GM Global Technology Operations LLC
Inventor： Oren Longman , Shachar Shayovitz , Shahar Villeval , Igal Bilik
Abstract: A method of mitigating vibration in a radar system on a moving platform includes obtaining received signals resulting from reflections of transmitted signals by one or more objects in a field of view of the radar system. The received signals are a three-dimensional data cube. The method also includes processing the received signals to obtain a first three-dimensional map and second three-dimensional map, estimating the vibration based on performing a first detection using the second three-dimensional map, and cancelling the vibration from the first three-dimensional map to obtain a corrected first three-dimensional map. A corrected second three-dimensional map is obtained by further processing the corrected first three-dimensional map; and a second detection is performed using the corrected second three-dimensional map.
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公开(公告)号：US20190086512A1
公开(公告)日：2019-03-21
申请号：US15705734
申请日：2017-09-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Igal Bilik , Shahar Villeval , Oren Longman
Abstract: Methods and systems are provided for controlling a radar system of a vehicle. One or more transmitters are configured to transmit radar signals. The system and method are operative to correct an expected transmission angle of a vehicular radar in response to a Doppler shift and a road surface measurement.
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40.发明公开公开(公告)号：US20240272270A1
公开(公告)日：2024-08-15
申请号：US18168225
申请日：2023-02-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Oren Longman , Oded Bialer
IPC: G01S7/02 , G01S13/58 , G01S13/931
CPC classification number: G01S7/023 , G01S13/584 , G01S13/931
Abstract: A method includes performing object detection by a radar sensor system. The object detection includes generating and transmitting object-detection (OD) chirps on an OD channel of a plurality of radar channels employed by the radar sensor system. The method further includes monitoring unused radar channels for interference and determining that at least one of the unused radar channels is free of interference. The method still further includes performing object detection by generating and transmitting one or more OD chirps on the determined interference-free channel.
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