公开(公告)号：US20200142049A1

公开(公告)日：2020-05-07

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 ,  G01S13/538 ,  G01S13/93 ,  G01S13/56

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.

公开(公告)号：US20200057137A1

公开(公告)日：2020-02-20

申请号：US16103173

申请日：2018-08-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: G01S7/40 ,  G01S13/93 ,  G01S7/35

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：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：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：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：US20240201319A1

公开(公告)日：2024-06-20

申请号：US18084616

申请日：2022-12-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Oren Longman ,  Gaston Solodky

IPC: G01S7/02 ,  G01S13/931 ,  H04B1/69 ,  H04L5/00

CPC classification number: G01S7/023 ,  G01S13/931 ,  H04B1/69 ,  H04L5/0005 ,  H04L5/0048 ,  H04L5/0073 ,  H04B2001/6912

Abstract: A system and method for time-frequency coding for interference mitigation of sensors is presented that includes generating and transmitting, from a vehicle, a first chirp signal by a first sensor, in a first time-channel and in a first frequency-channel. The method may also include generating and transmitting, a second chirp signal by a second sensor, in a second time-channel and in the first frequency-channel and the receiving, by the first sensor, a first reflection signal from objects from the first chirp signal. In addition, there may be a receiving, by the second sensor, a second reflection signal from objects from the second chirp signal. In addition, the first time-channel is orthogonal to the second time-channel, and the transmitting of the second chirp signal is offset in time from the transmitting of the first chirp signal by an amount less than a duration of the first chirp signal.

公开(公告)号：US20220236409A1

公开(公告)日：2022-07-28

申请号：US17157060

申请日：2021-01-25

Applicant: GM Global Technology Operations LLC

Inventor： Gaston Solodky ,  Ishai Eljarat ,  Igal Bilik ,  Gonen Barkan

IPC: G01S15/89 ,  G01S15/87 ,  G01S15/42 ,  G01S7/539

Abstract: A method includes obtaining an initial point cloud for each of two or more radar systems that share a common field of view. Each initial point cloud results from processing reflected energy at each of the two or more radar systems. Each point of the initial point cloud indicates one or more hypotheses for a range, a Doppler, and a direction of arrival (DOA) to an object that resulted in the reflected energy. A point cloud, obtained from the initial point cloud, has a same number of hypotheses for the range, the Doppler, and the DOA. Resolving ambiguity in the common field of view is based on the point clouds to obtain resolved and unresolved points in the common field of view. A radar image obtained from each of the two or more radar systems is used to control an aspect of operation of a vehicle.

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

IPC: G01S13/34 ,  H01Q21/00 ,  H01Q1/32

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.

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.

公开(公告)号：US12032060B2

公开(公告)日：2024-07-09

申请号：US17157060

申请日：2021-01-25

Applicant: GM Global Technology Operations LLC

Inventor： Gaston Solodky ,  Ishai Eljarat ,  Igal Bilik ,  Gonen Barkan

IPC: G01S15/89 ,  G01S7/539 ,  G01S15/42 ,  G01S15/87

CPC classification number: G01S15/89 ,  G01S7/539 ,  G01S15/42 ,  G01S15/87

Abstract: A method includes obtaining an initial point cloud for each of two or more radar systems that share a common field of view. Each initial point cloud results from processing reflected energy at each of the two or more radar systems. Each point of the initial point cloud indicates one or more hypotheses for a range, a Doppler, and a direction of arrival (DOA) to an object that resulted in the reflected energy. A point cloud, obtained from the initial point cloud, has a same number of hypotheses for the range, the Doppler, and the DOA. Resolving ambiguity in the common field of view is based on the point clouds to obtain resolved and unresolved points in the common field of view. A radar image obtained from each of the two or more radar systems is used to control an aspect of operation of a vehicle.