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.

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.

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

IPC: G01S13/58 ,  G01S7/295

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.

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

IPC: G01S13/34 ,  H01Q1/32 ,  G01S7/03 ,  G01S13/93

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.

公开(公告)号：US20190391229A1

公开(公告)日：2019-12-26

申请号：US16013079

申请日：2018-06-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oren Longman ,  Shahar Villeval ,  Igal Bilik ,  Evgeny Tsalolikhin

IPC: G01S7/03 ,  H01Q1/32 ,  H01Q21/22 ,  H01Q3/34 ,  G01S13/89 ,  G01S13/93

Abstract: A multi-mode radar antenna apparatus is provided. The apparatus includes a transmitting antenna section comprising a first plurality of transmitting antennas configured to a transmit a steerable mode signal, a second plurality of transmitting antennas configured to a transmit an imaging mode signal, and a third plurality of transmitting antennas configured to a transmit an imaging mode signal and a steerable mode signal, and a receiving antenna section comprising a plurality of receiving antennas.

公开(公告)号：US12158538B2

公开(公告)日：2024-12-03

申请号：US17742578

申请日：2022-05-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oren Longman

IPC: G01S7/40

Abstract: A system for unsupervised radar calibration of a vehicle is contemplated. The system may include a radar having a plurality of antennas configured to transmit radar signals and responsively receive reflected signals. The system may further include a calibration controller configured to determine a plurality of detections from the reflected signals corresponding with unsupervised objects in the vicinity of the vehicle, and based on the detections, to generate a calibration matrix sufficient for calibrating the radar.

公开(公告)号：US11555920B2

公开(公告)日：2023-01-17

申请号：US17082533

申请日：2020-10-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oren Longman ,  Igal Bilik

IPC: G01S13/931 ,  G01S13/58 ,  G01S7/288 ,  G01S13/92

Abstract: Methods and systems for estimating vehicle velocity based on radar data. The methods and systems include receiving a set of range-Doppler-beam, RDB, maps from radars located on a vehicle and performing an optimization process that adjusts an estimate of vehicle velocity so as to optimize a correlation score. The optimization process includes iteratively: spatially registering the set of RDB maps based on the current estimate of vehicle velocity, determining the correlation score based on the spatially registered set of RDB maps, and outputting an optimized estimate of vehicle velocity from the optimization process when the correlation score has been optimized. The methods and systems control the vehicle based at least in part on the optimized estimate of vehicle velocity.

公开(公告)号：US11385328B2

公开(公告)日：2022-07-12

申请号：US16103173

申请日：2018-08-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gaston Solodky ,  Oren Longman ,  Shahar Villeval ,  Igai Bilik

IPC: G01S7/40 ,  G01S7/35 ,  G01S13/931

Abstract: A vehicle, radar system for the vehicle and method for detecting an object. The radar system includes a transmitter for transmitting a source signal and a receiver for receiving a reflection of the source signal from an object. A processor obtains a radar parameter of the object from the received reflection, adjusts an operating parameter of the radar based on the radar parameter to provide an altered source signal, and detects the object based on a reflection of the altered source signal.

公开(公告)号：US11313948B2

公开(公告)日：2022-04-26

申请号：US16505107

申请日：2019-07-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oren Longman ,  Igal Bilik ,  Shahar Villeval

IPC: G01S7/41 ,  G01S7/40 ,  G01S13/42 ,  G01S13/931

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.

公开(公告)号：US11209537B2

公开(公告)日：2021-12-28

申请号：US16444648

申请日：2019-06-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oren Longman ,  Gaston Solodky ,  Shahar Villeval ,  Igai Bilik

IPC: G01S13/56 ,  G01S13/931 ,  B60W50/14 ,  G05D1/02

Abstract: A radar circuit for use with a host system such as a vehicle includes a radio frequency (RF) signal generator configured to generate a predetermined RF waveform, an RF antenna connected to the RF signal generator, and an ECU which executes a method. As part of such a method, a signal generator transmits the RF waveform toward different radar target types, and receives return signatures reflected therefrom. The ECU receives the return signatures from the antenna, processes the return signatures via parallel constant false-alarm rate (CFAR) subdetectors each with defined cells under test to detect the target types as a set of detection events, merges the detection events into a merged set, and executes a control action aboard the host system responsive to the merged set. Each subdetector detects a corresponding one or more of the radar target types via corresponding detection parameters.