公开(公告)号：US20190129003A1

公开(公告)日：2019-05-02

申请号：US15796912

申请日：2017-10-30

Applicant: GM Global Technology Operations LLC

Inventor： Oren Longman ,  Shahar Villeval ,  Igal Bilik

IPC: G01S7/35 ,  G01S13/93 ,  G01S13/89 ,  G01S13/32

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.

公开(公告)号：US20190107615A1

公开(公告)日：2019-04-11

申请号：US15726082

申请日：2017-10-05

Applicant: GM Global Technology Operations LLC

Inventor： Ishai Eljarat ,  Gonen Barkan ,  Igal Bilik

IPC: G01S13/60 ,  G01S13/50 ,  G01S13/58

Abstract: A method of tracking an object includes establishing a track from a plurality of sequential Doppler radar frames f−1, f−2, f−3, etc. A location of a representative centroid of a cluster of data points is identified in a Doppler radar frame f. A radial velocity between a location of the track in the Doppler radar frame f−1 and the location of the representative centroid of the cluster in the Doppler radar frame f is calculated. An error between a Doppler velocity of the track in the Doppler radar frame f−1 and the calculated radial velocity is calculated. When the calculated error is less than a minimum error threshold, the representative centroid of the cluster in the Doppler radar frame f is associated with the track.

公开(公告)号：US20190086509A1

公开(公告)日：2019-03-21

申请号：US15705728

申请日：2017-09-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Igal Bilik ,  Alexander Pokrass ,  Shahar Villeval

IPC: G01S7/02

Abstract: Methods and systems are provided for controlling a radar system of a vehicle. One or more transmitters are configured to transmit radar signals. A plurality of antennas or arrays are configured to operate at a common frequency and a method and system for detecting mutual interference and for resetting the system in response to the mutual interference.

公开(公告)号：US20190064319A1

公开(公告)日：2019-02-28

申请号：US15687966

申请日：2017-08-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oded Bialer ,  Igal Bilik

IPC: G01S7/292

Abstract: A system and method are provided for processing echo signals reflected from one of more targets in a radar field-of-view. The method includes receiving echo signals reflected from one or more targets in the radar field-of-view in response to a sequence of transmit pulses; generating a received signal vector containing samples from the received echo signals; and applying the received signal vector to a set of filters configured to calculate a Doppler spectrum for a set of Doppler frequencies to which each filter is tuned, wherein an integration processing time for each filter varies relative to the Doppler frequency of each filter.

公开(公告)号：US10215851B2

公开(公告)日：2019-02-26

申请号：US14855496

申请日：2015-09-16

Applicant: GM Global Technology Operations LLC

Inventor： Inna Stainvas Olshansky ,  Igal Bilik ,  Oded Bialer

IPC: G01S13/58 ,  G01S13/89

Abstract: In an embodiment, a method for processing an image is provided. The method receives an image including a plurality of pixels. Each pixel includes radial velocity information. The method categorizes the plurality of pixels of the image into a plurality of groups of pixels based on radial velocity information of the pixels. The method associates at least one of the groups of pixels with an object.

公开(公告)号：US20190051969A1

公开(公告)日：2019-02-14

申请号：US15676593

申请日：2017-08-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hyok Jae Song ,  Melanie S. Yajima ,  Hasan Sharifi ,  Keerti S. Kona ,  Igal Bilik

IPC: H01Q1/12 ,  H01Q1/36

Abstract: The present application generally relates communications and hazard avoidance within a monitored driving environment. More specifically, the application teaches a system for semi-transparent and flexible millimeter wave circuits and antennas using inexpensive PET substrate. The system facilitates the fabrication of millimeter wave circuits, transmission lines and antennas in various optically transparent platform where optical transparency is desired, for example in automotive radar in windows, windshield, and rear/side mirrors.

公开(公告)号：US20180356506A1

公开(公告)日：2018-12-13

申请号：US15619933

申请日：2017-06-12

Applicant: GM Global Technology Operations LLC

Inventor： Igal Bilik ,  Gonen Barkan ,  Shahar Villeval ,  Shmuel Nedjar ,  Ilya Shapir Poltorak

IPC: G01S13/46 ,  G01S1/72 ,  G01S15/89 ,  H01Q3/26 ,  G01S7/52 ,  G01S13/72

CPC classification number: G01S13/46 ,  G01S1/72 ,  G01S7/52095 ,  G01S13/42 ,  G01S13/72 ,  G01S13/723 ,  G01S13/931 ,  G01S15/8927 ,  G01S2013/0245 ,  G01S2013/468 ,  G01S2013/9375 ,  H01Q3/26

Abstract: A system and method to perform two-stage beamforming in a radar system includes obtaining an incoming signal vector x associated with a detected target. The method also includes performing coarse beamforming with a first set of k1 azimuthal angle θi and elevation angle φi combinations associated with each element of the vector, and selecting a selected area in an azimuth-elevation plane around a subset of the k1 azimuthal angle θi and elevation angle φi combinations for each element of the vector. Fine beamforming is performed in the selected area with a second set of k2 azimuthal angle θi and elevation angle φi combinations associated with each element of the vector. The second set of k2 azimuthal angle θi and elevation angle φi combinations is more closely spaced in the azimuth-elevation plane than the first set of k1 azimuthal angle θi and elevation angle φi combinations.

公开(公告)号：US20180329054A1

公开(公告)日：2018-11-15

申请号：US15592690

申请日：2017-05-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alexander Pokrass ,  Igal Bilik ,  Moshe Laifenfeld

IPC: G01S13/93 ,  G01S13/58

CPC classification number: G01S13/931 ,  G01S7/2923 ,  G01S7/354 ,  G01S13/26 ,  G01S13/30 ,  G01S13/343 ,  G01S13/584 ,  G01S2007/356

Abstract: A system and method for obtaining a Doppler frequency of a target are disclosed. A receiver receives a first plurality of samples of a first echo signal from the target and a second plurality of samples of a second echo signal from the target. The second plurality of samples is separated from the first plurality of samples by a time period. A phase shift is determined for the duration of the time period and the phase shift is applied to the second plurality of samples. The first plurality of samples is combined with the second plurality of samples to obtain combined samples, and the Doppler frequency for the target is obtained from the combined samples.

公开(公告)号：US10094919B2

公开(公告)日：2018-10-09

申请号：US14876134

申请日：2015-10-06

Applicant: GM Global Technology Operations LLC

Inventor： Dan Levi ,  Shuqing Zeng ,  Igal Bilik

IPC: G01S13/42 ,  G01S13/58 ,  G01S13/86 ,  G01S7/40 ,  G01S13/93

Abstract: A method of determining velocity of a target and a fusion system on a moving platform to determine the velocity of the target are described. The method includes obtaining, using a radar system, position and radial velocity of the target relative to the moving platform, obtaining, using a vision system, optical flow vectors based on motion of the target relative to the moving platform, and estimating a dominant motion vector of the target based on the optical flow vectors. The method also includes processing the position, the radial velocity, and the dominant motion vector and determining the velocity of the target in two dimensions.

公开(公告)号：US20180284220A1

公开(公告)日：2018-10-04

申请号：US15471413

申请日：2017-03-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Igal Bilik ,  Alexander Pokrass ,  Shahar Villeval

IPC: G01S7/40 ,  G01S13/08

CPC classification number: G01S7/40 ,  G01S13/003 ,  G01S13/46 ,  G01S13/876 ,  G01S13/878 ,  G01S13/931 ,  G01S15/878 ,  G01S2007/4086 ,  G01S2013/466

Abstract: A method and apparatus for determining a distance between a first radar system disposed on a vehicle and a second radar system disposed on the vehicle. A target reflector is moved along a track to a location along a perpendicular bisector of a baseline connecting the first radar system and the second radar system. A direct range measurement is obtained for at least one of the first radar system and the second radar system, and a bistatic range measurement is obtained between the first radar system and the second radar system. A processor determines the distance between the first radar system and the second radar system using the direct range measurement, the bistatic range measurement and a radial length of the target reflector.