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公开(公告)号：US20200333455A1
公开(公告)日：2020-10-22
申请号：US16388596
申请日：2019-04-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Oren Longman , Igal Bilik
Abstract: An example method for performing a joint radon transform association includes detecting, by a processing device, a target object to track relative to a vehicle. The method further includes performing, by the processing device, the joint radon transform association on the target object to generate association candidates. The method further includes tracking, by the processing device, the target object relative to the vehicle using the association candidates. The method further includes controlling, by the processing device, the vehicle based at least in part on tracking the target object.
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公开(公告)号：US10794991B2
公开(公告)日：2020-10-06
申请号：US15803032
申请日：2017-11-03
Applicant: GM Global Technology Operations LLC
Inventor： Oren Longman , Shahar Villeval , Igal Bilik
IPC: G01S7/35 , G01S13/32 , G01S13/42 , G01S13/931
Abstract: A system and method to perform target detection includes transmitting frequency modulated continuous wave (FMCW) pulses as chirps from a radar system. The method also includes receiving reflections resulting from the chirps, and processing the reflections to obtain a range-chirp map for each beam associated with the transmitting. Curve detection is performed on the range-chirp map for each beam, and one or more targets is detected based on the curve detection.
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公开(公告)号：US20200249315A1
公开(公告)日：2020-08-06
申请号：US16264826
申请日：2019-02-01
Applicant: GM Global Technology Operations LLC
Inventor： Yaron Eshet , Oded Bialer , Igal Bilik
Abstract: Deep learning in a radar system includes obtaining unaliased time samples from a first radar system. A method includes under-sampling the un-aliased time samples to obtain aliased time samples of a first configuration, matched filtering the un-aliased time samples to obtain an un-aliased data cube and the aliased time samples to obtain an aliased data cube, and using a first neural network to obtain a de-aliased data cube. A first neural network is trained to obtain a trained first neural network. The under-sampling of the un-aliased time samples is repeated to obtain second aliased time samples of a second configuration. The method includes training a second neural network to obtain a trained second neural network, comparing results to choose a selected neural network corresponding with a selected configuration, and using the selected neural network with a second radar system that has the selected configuration to detect one or more objects.
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公开(公告)号：US10690750B2
公开(公告)日：2020-06-23
申请号：US15413753
申请日：2017-01-24
Applicant: GM Global Technology Operations LLC
Inventor： Igal Bilik , Alexander Pokrass , Shahar Villeval
IPC: G01S7/40 , G01S13/87 , G01S13/931 , G01S13/34 , G01S13/00
Abstract: A method of synchronizing a plurality of spatially distributed multi-input multi-output (MIMO) radar systems includes designating one of the plurality of MIMO radar systems that includes a linear frequency modulator as a master MIMO radar system, and designating each of the other plurality of MIMO radar systems as slave MIMO radar systems. Each of the slave MIMO radar systems receives an output of the linear frequency modulator. A synchronization signal is sent from the linear frequency modulator through the modulator splitter to each of the slave MIMO radar systems over respective cables, and a return signal is sent from each of the slave MIMO radar systems to the master MIMO radar system over the respective cables. A time delay is determined between the master MIMO radar system and each of the slave MIMO radar systems based on a frequency difference between the synchronization signal and the respective return signal.
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公开(公告)号：US20200150257A1
公开(公告)日：2020-05-14
申请号：US16189045
申请日：2018-11-13
Applicant: GM Global Technology Operations LLC
Inventor： Gaston Solodky , Oren Longman , Shahar Villeval , Igal Bilik
IPC: G01S13/28 , H04B7/0413 , G01S7/02 , G01S13/93
Abstract: A system and method to generate a family of orthogonal signals for a code division multiple access (CDMA) radar system involve selecting a first signal of the family of orthogonal signals for transmission by one of a plurality of transmitters of the radar system. The method includes using an algorithm to determine a second signal of the family of orthogonal signals. The algorithm uses cross-correlation values between candidate signals for consideration as the second signal of the family of orthogonal signals and the first signal. The method also includes transmitting the first signal of the family of orthogonal signals and the second signal of the family of orthogonal signals simultaneously from two different transmitters, and obtaining and processing reflections resulting from transmission of the first signal of the family of orthogonal signals and the second signal of the family of orthogonal signals.
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Patent Agency Ranking
公开(公告)号：US20200049810A1
公开(公告)日：2020-02-13
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：US20200041636A1
公开(公告)日：2020-02-06
申请号：US16052940
申请日：2018-08-02
Applicant: GM Global Technology Operations LLC
Inventor： Oren Longman , Shahar Villeval , Igal Bilik
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：US10539672B2
公开(公告)日：2020-01-21
申请号：US15374210
申请日：2016-12-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Igal Bilik , Alexander Pokrass , Moshe Laifenfeld
Abstract: A system and method of determining a relative velocity of an object at a radar system is disclosed. A transmitter transmits a source signal at the object and a receiver receives an echo signal that is a reflection of the source signal from the object. The echo signal is partitioned into a first portion and a second portion at a processor. A first Doppler frequency is estimated for the first portion and a second Doppler frequency is estimated for the portion. A difference is estimated between the first Doppler frequency and the second Doppler frequency. A presence of a Doppler ambiguity is determined from a comparison of the estimated difference to a selected Doppler frequency. A corrected Doppler frequency is obtained based on the Doppler ambiguity and the relative velocity of the object is determined from the corrected Doppler frequency.
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公开(公告)号：US10539645B2
公开(公告)日：2020-01-21
申请号：US15405523
申请日：2017-01-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Oded Bialer , Igal Bilik
Abstract: A method is disclosed for determining an angle of arrival of an incident plane wave received by an antenna array. The method includes receiving signals from a plurality of antenna receiving channels, determining a set of possible angles of arrival of the incident plane wave based on the signals received at the plurality of receiving channels, measuring a pulse delay of the incident plane wave between the signals received at the plurality of receiving channels, and calculating the angle of arrival of the incident plane wave based on the set of possible angles of arrival and the measured pulse delay.
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公开(公告)号：US10527713B2
公开(公告)日：2020-01-07
申请号：US15450549
申请日：2017-03-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Igal Bilik , Alexander Pokrass , Shahar Villeval
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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