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公开(公告)号：US20180231654A1
公开(公告)日：2018-08-16
申请号：US15434492
申请日：2017-02-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Igal Bilik , Michael Slutsky , Shahar Villeval
CPC classification number: G01S13/865 , G01S7/4004 , G01S7/4026 , G01S7/497 , G01S13/931 , G01S17/023 , G01S17/66 , G01S17/89 , G01S17/936 , G01S2007/4086 , G01S2013/9375 , H01Q1/3233 , H01Q15/18
Abstract: A method and apparatus for calibrating a LiDAR system at a first location with a radar system at a second location. A calibration target is placed at a location and orientation with respect to the LiDAR system and the radar system. Coefficients of a plane of the calibration target are determined in a frame of reference of the LiDAR system. Coordinates of the calibration target are determined in a frame of reference of the radar system. A cost function is composed from a planar equation that includes the determined coefficients and the determined coordinates and a relative pose matrix that transforms the frame of reference of the radar system to the frame of reference of the LiDAR system. The cost function is reduced to estimate the relative pose matrix for calibration of the LiDAR system with the radar system.
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公开(公告)号：US20180203108A1
公开(公告)日：2018-07-19
申请号：US15409986
申请日：2017-01-19
Applicant: GM Global Technology Operations LLC
Inventor： Shmuel Nedjar , Igal Bilik , Shahar Villeval
IPC: G01S13/90
Abstract: A system and method to achieve angular ambiguity resolution in a two-dimensional Doppler synthetic aperture radar system include transmitting pulses using a plurality of transmit elements during movement of a platform on which the system is mounted. Reflections are received from a target resulting from the pulses and the reflections are processed to determine a Doppler measurement. The processing includes isolating movement of the target in the Doppler measurement, and determining a target azimuth angle and a target elevation angle to the target based on an iterative process that includes estimating the target elevation angle or the target azimuth angle and then determining the target azimuth angle or the target elevation angle, respectively, based on a beamforming matrix. The beamforming matrix indicates amplitude and phase at each azimuth angle and each elevation angle among a set of azimuth angles and a set of elevation angles.
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公开(公告)号：US11447063B2
公开(公告)日：2022-09-20
申请号：US16515662
申请日：2019-07-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Tzvi Philipp , Shahar Villeval , Igal Bilik
Abstract: A scanning and perception system for a vehicle camera having an instantaneous field of view (iFOV) and configured to capture an image of an object at a saturation level in the camera's iFOV. The system also includes a light source configured to illuminate the camera's iFOV. The system additionally includes a radar configured to determine the object's velocity and the object's distance from the vehicle, and a mechanism configured to steer the radar and/or the camera. The system also includes an electronic controller programmed to regulate the mechanism and adjust illumination intensity of the light source in response to the saturation level in the image or the determined distance to the object. The controller is also programmed to merge data indicative of the captured image and data indicative of the determined position of the object and classify the object and identify the object's position in response to the merged data.
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公开(公告)号：US11143753B2
公开(公告)日：2021-10-12
申请号：US16407982
申请日：2019-05-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Oren Longman , Shahar Villeval , Igal Bilik , Lior Kissos
IPC: G01S13/34 , G01S13/526 , G01S13/931
Abstract: A vehicle, radar system of a vehicle and method of extending a range of the radar system. The radar system includes a transmitter antenna, a receiver antenna and a processor. The transmitter antenna transmits a reference signal. The receiver antenna receives an echo signal in response to reflection of the reference signal from an object located at a distance outside of the range limit of the radar system, wherein the range limit indicating a frequency sampling range. The processor generates a frequency peak for the object from the received echo signal, wherein the frequency peak lies outside of the frequency sampling range, shifts the frequency peak to within the frequency sampling range, and determines a range of the object using the frequency-shifted peak.
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公开(公告)号：US11099268B2
公开(公告)日：2021-08-24
申请号：US16225784
申请日：2018-12-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michael Dikshtein , Igal Bilik , Shahar Villeval , Oren Longman
Abstract: A vehicle, radar system for the vehicle and method of operating the vehicle is disclosed. The radar system includes a transmitter, a receiver and a processor. The transmitter transmits a source signal into a region proximate the vehicle. The receiver receives a reflected signal formed by reflection of the source signal from an object in the region. The processor obtains non-linear terms of a phase from the reflected signal and resolves a Doppler ambiguity of the object using the non-linear terms. A navigation system navigates the vehicle with respect to the object based on the resolved Doppler ambiguity.
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Patent Agency Ranking
公开(公告)号：US10962636B2
公开(公告)日：2021-03-30
申请号：US16101870
申请日：2018-08-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Oren Longman , Shahar Villeval , Igal Bilik
Abstract: A vehicle, radar system for a vehicle, and method of determining a radial velocity of an object via the radar system. The radar system includes a transmitter, receiver and processor. The transmitter transmits a source signal towards an object, and the receiver for receives a reflection of the source signal from the object. The processor obtains a Doppler measurement related to a radial velocity of the object, wherein the Doppler measurement includes a Doppler ambiguity, obtains a range walk rate for the radial velocity of the object, and resolves the Doppler ambiguity of the Doppler measurement using the range walk rate to obtain the radial velocity of the object.
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公开(公告)号：US20210072367A1
公开(公告)日：2021-03-11
申请号：US16567414
申请日：2019-09-11
Applicant: GM Global Technology Operations LLC
Inventor： Gaston Solodky , Oren Longman , Shahar Villeval , Igal Bilik
Abstract: Methods and systems involve generating a family of codewords. Each codeword of the family of codewords including three segments with one of the three segments being a hyperbolic frequency modulation (HFM) segment and two of the three segments being linear frequency modulation (LFM) segments. A method includes transmitting each codeword of the family of codewords using a different transmit antenna element.
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公开(公告)号：US20210011123A1
公开(公告)日：2021-01-14
申请号：US16505107
申请日：2019-07-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Oren Longman , Igal Bilik , Shahar Villeval
Abstract: A radar system may include a transmitter, a receiver, and a controller. The controller may calculate a received beam response spectrum based on the received reflected radar signal, detect a first maximum value of the received beam response spectrum, identify an angle corresponding to the first maximum value as a first target angle, obtain a threshold envelope based on the first maximum value and the first target angle, detect a second maximum value in a portion of the received beam response spectrum being greater than the threshold envelope, identify an angle corresponding to the second maximum value as a second target angle, and output the first target angle as the angle of arrival of the reflected radar signal from the first target and the second target angle as the angle of arrival of the reflected radar signal from the second target.
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公开(公告)号：US20200333433A1
公开(公告)日：2020-10-22
申请号：US16385549
申请日：2019-04-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Oren Longman , Shahar Villeval , Igal Bilik
Abstract: A radar system for use in a vehicle may include a radar transmitter structured to transmit a radar signal having a waveform; and a controller operably connected to the radar transmitter and configured to control the waveform. The waveform may be characterized by a waveform parameter. The controller may be configured to set a value of the waveform parameter based on a present operational state of the vehicle, thereby generating an updated waveform. The radar transmitter may be structured to transmit an updated radar signal having the updated waveform.
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公开(公告)号：US10795013B2
公开(公告)日：2020-10-06
申请号：US16182847
申请日：2018-11-07
Applicant: GM Global Technology Operations LLC
Inventor： Gaston Solodky , Shahar Villeval , Oren Longman , Igal Bilik
IPC: G01S13/72 , G01S13/56 , G01S13/931 , G01S13/538
Abstract: A system and method to perform multi-target detection in a code division multiple access (CDMA) radar system involve transmitting, from each transmitter among T transmitters, a transmitted signal with a different code, and receiving, at each receiver among one or more receivers, a received signal that includes reflections resulting from each of the transmitted signals with the different codes. The method includes processing the received signal at each of the one or more receivers by implementing T processing chains. Each of the T processing chains is iterative. The method also includes detecting an object at each completed iteration at each of the T processing chains, and subtracting a subtraction signal representing a contribution of the object to the received signal prior to subsequent iterations.
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