公开(公告)号：US20210011151A1

公开(公告)日：2021-01-14

申请号：US16507603

申请日：2019-07-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oren Longman ,  Igal Bilik

IPC: G01S13/93 ,  G01S7/03

Abstract: A radar circuit for use with a vehicle or other host system includes a radio frequency (RF) signal generator, an RF antenna connected to the signal generator configured to transmit an RF waveform toward a radar target and receive a radar return signature reflected therefrom, and an analog-to-digital converter (ADC) in communication with the antenna and having a different sampling frequencies. The ADC may have multiple channels outputting sampled radar return signature data at the different sampling frequencies. An ECU is in communication with the ADC to receive the sampled radar return signature data from the ADC, generate a set of range hypotheses describing a possible range from the host system to the radar target, select a correct range hypothesis, and execute a control action using the correct range hypothesis. The correct range hypothesis corresponds to a true range to the radar target.

公开(公告)号：US20200319295A1

公开(公告)日：2020-10-08

申请号：US16373117

申请日：2019-04-02

Applicant: GM Global Technology Operations LLC

Inventor： Oren Longman ,  Shahar Villeval ,  Igal Bilik

IPC: G01S7/35 ,  G01S13/93 ,  G01S13/34

Abstract: A method and system include transmitting transmit signals from a radar system. The transmit signals are linear frequency modulated continuous wave signals. The method includes receiving reflected signals at the radar system based on reflection of at least at subset of the transmit signals by one or more objects. A range from the radar system associated with each of the reflected signals corresponds with a frequency of the reflected signal. The reflected signals are processed to identify and locate the one or more objects. Processing includes applying an adaptive range-selective gain control (ARSGC) to control a gain corresponding with each of the reflected signals based on the range associated with the reflected signal.

公开(公告)号：US20240310482A1

公开(公告)日：2024-09-19

申请号：US17742578

申请日：2022-05-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oren Longman

IPC: G01S7/40

CPC classification number: G01S7/4008 ,  G01S7/4021

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：US11887272B2

公开(公告)日：2024-01-30

申请号：US17672809

申请日：2022-02-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oren Longman ,  Noam Zac

IPC: G01S17/89 ,  G06T3/00 ,  G01S13/89 ,  G01S17/931 ,  G01S13/931 ,  G06T7/70 ,  G06T3/60 ,  B60W60/00 ,  G06T7/32

CPC classification number: G06T3/0068 ,  B60W60/001 ,  G01S13/89 ,  G01S13/931 ,  G01S17/89 ,  G01S17/931 ,  G06T3/60 ,  G06T7/32 ,  G06T7/70 ,  B60W2420/42 ,  B60W2420/52 ,  G06T2207/30252

Abstract: A spatial monitoring system employs a partial dimension iterative closest point analysis to provide improved accuracy for point cloud registration. The partial dimension iterative closest point analysis improves registration accuracy by performing optimization in accordance with an error magnitude of each dimension, wherein dimensions having large initial errors are significantly improved, and dimensions having high initial accuracy are further improved. The registration separately optimizes each dimension using surfaces with contributing information for the optimized dimension.

公开(公告)号：US20220299632A1

公开(公告)日：2022-09-22

申请号：US17208065

申请日：2021-03-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oren Longman ,  Igal Bilik

IPC: G01S13/90 ,  G06T11/00 ,  G01S13/931

Abstract: A method for using Synthetic Aperture Radar (SAR) to perform a maneuver in a land vehicle is provided. The method includes: receiving digitized radar return data from a radar transmission from a SAR onboard the vehicle; accumulating a plurality of frames of the digitized radar return data; applying a RADON transform to the accumulated plurality of frames of the digitized radar return data and odometry data from the vehicle to generate transformed frames of data for each three-dimensional point, wherein the RADON transform is configured to perform coherent integration for each three-dimensional point, project a radar trajectory onto each three-dimensional point, and project Doppler information onto each three-dimensional point; generating a two-dimensional map of an area covered by the radar transmission from the SAR based on the transformed frames of data for each three-dimensional point; and performing a maneuver with the land vehicle by applying the generated two-dimensional map.

公开(公告)号：US11249165B2

公开(公告)日：2022-02-15

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 ,  G01S13/931 ,  G01S7/42 ,  H04B7/0413

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.

公开(公告)号：US11112497B2

公开(公告)日：2021-09-07

申请号：US15977343

申请日：2018-05-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shahar Villeval ,  Oren Longman ,  Igal Bilik

IPC: G01S13/58 ,  G01S7/35 ,  G01S13/931

Abstract: A vehicle, system for navigating the vehicle and method of operating the vehicle. The system includes a radar system and a processor. The radar system transmits a linear frequency modulated signal into an environment of the vehicle and receives a reflection of the linear frequency modulated signal from an object in the environment. The processor partitions the reflection into a plurality of streams to obtain a Doppler frequency that exceeds a maximum Doppler frequency of the radar.

公开(公告)号：US10996326B2

公开(公告)日：2021-05-04

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 ,  G01S13/931 ,  G01S7/02 ,  H04B7/0413

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：US10914819B2

公开(公告)日：2021-02-09

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

IPC: G01S7/40 ,  G01S13/86 ,  G01S7/35 ,  G01S13/931 ,  G01S13/89 ,  G01S7/02

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.

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

IPC: G01S13/66 ,  G06F17/14 ,  G01S13/93

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.