公开(公告)号：US11988770B2

公开(公告)日：2024-05-21

申请号：US17684952

申请日：2022-03-02

Applicant: Aurora Operations, Inc.

Inventor： Stephen Crouch ,  Chunshu Li

IPC: G01S7/35 ,  G01S13/36 ,  G01S13/58 ,  G01S13/931

CPC classification number: G01S7/358 ,  G01S13/36 ,  G01S13/583 ,  G01S13/931

Abstract: Time-division quadrature sampling may be used in a pulse-modulated continuous wave (PMCW) radar receiver circuit, e.g., as may be employed in various types of radar sensors used in automotive and other applications, to enable a quadrature sampling circuit to sequence between digitally sampling different complex components of a received radar signal at different times.

公开(公告)号：US20230131090A1

公开(公告)日：2023-04-27

申请号：US18084492

申请日：2022-12-19

Applicant: Aurora Operations, Inc.

Inventor： Chunshu Li ,  Stephen Crouch

IPC: G01S7/35 ,  G01S13/34 ,  B60W60/00 ,  G01S13/931 ,  G01S7/40

Abstract: A vehicle radar sensor utilizes Frequency Modulated Continuous Wave (FMCW) radar signals that incorporate non-uniform FMCW chirps having chirp profiles that differ from one another to sense one or more parameters of one or more objects in a field of view of the radar sensor. The chirp profiles may differ from one another in various manners, e.g., based on starting frequency, repetition interval, duration and/or slope, and among other advantages, may be used to enhance sensing of various parameters such as range, Doppler/velocity and/or angle.

公开(公告)号：US20240140480A1

公开(公告)日：2024-05-02

申请号：US18520003

申请日：2023-11-27

Applicant: Aurora Operations, Inc.

Inventor： Bo Li ,  Chunshu Li

IPC: B60W60/00 ,  G01S13/89

CPC classification number: B60W60/001 ,  G01S13/89 ,  B60W2300/12 ,  B60W2420/408 ,  B60W2554/40 ,  B60W2556/35

Abstract: A radio detection and ranging (RADAR) sensor system for vehicles, such as autonomous vehicles, includes a first RADAR sensor configured to provide first RADAR data descriptive of an environment of a vehicle having a first antenna configured to output a first RADAR beam having a first azimuthal component over a first angular range and a second RADAR sensor configured to provide second RADAR data descriptive of the environment of the vehicle, the second RADAR sensor having a second antenna configured to output a second RADAR beam having a second azimuthal component that is narrower than the first azimuthal component of the first RADAR beam, wherein the second RADAR sensor is configured to sweep the second RADAR beam over a second angular range closer to a rear of the vehicle than a front of the vehicle to obtain the second RADAR data.

公开(公告)号：US11884292B1

公开(公告)日：2024-01-30

申请号：US17972219

申请日：2022-10-24

Applicant: Aurora Operations, Inc.

Inventor： Bo Li ,  Chunshu Li

IPC: B60W60/00 ,  G01S13/89

CPC classification number: B60W60/001 ,  G01S13/89 ,  B60W2300/12 ,  B60W2420/52 ,  B60W2554/40 ,  B60W2556/35

Abstract: A radio detection and ranging (RADAR) sensor system for vehicles, such as autonomous vehicles, includes a first RADAR sensor configured to provide first RADAR data descriptive of an environment of a vehicle having a first antenna configured to output a first RADAR beam having a first azimuthal component over a first angular range and a second RADAR sensor configured to provide second RADAR data descriptive of the environment of the vehicle, the second RADAR sensor having a second antenna configured to output a second RADAR beam having a second azimuthal component that is narrower than the first azimuthal component of the first RADAR beam, wherein the second RADAR sensor is configured to sweep the second RADAR beam over a second angular range closer to a rear of the vehicle than a front of the vehicle to obtain the second RADAR data.

公开(公告)号：US12032092B2

公开(公告)日：2024-07-09

申请号：US18084492

申请日：2022-12-19

Applicant: Aurora Operations, Inc.

Inventor： Chunshu Li ,  Stephen Crouch

IPC: G01S7/35 ,  B60W60/00 ,  G01S7/40 ,  G01S13/34 ,  G01S13/50 ,  G01S13/52 ,  G01S13/58 ,  G01S13/931

CPC classification number: G01S7/35 ,  B60W60/001 ,  G01S7/356 ,  G01S7/4056 ,  G01S13/347 ,  G01S13/505 ,  G01S13/52 ,  G01S13/58 ,  G01S13/584 ,  G01S13/931 ,  B60W2420/408

Abstract: A vehicle radar sensor utilizes Frequency Modulated Continuous Wave (FMCW) radar signals that incorporate non-uniform FMCW chirps having chirp profiles that differ from one another to sense one or more parameters of one or more objects in a field of view of the radar sensor. The chirp profiles may differ from one another in various manners, e.g., based on starting frequency, repetition interval, duration and/or slope, and among other advantages, may be used to enhance sensing of various parameters such as range, Doppler/velocity and/or angle.

公开(公告)号：US20250044408A1

公开(公告)日：2025-02-06

申请号：US18767794

申请日：2024-07-09

Applicant: Aurora Operations, Inc.

Inventor： Chunshu Li ,  Stephen Crouch

IPC: G01S7/35 ,  B60W60/00 ,  G01S7/40 ,  G01S13/34 ,  G01S13/50 ,  G01S13/52 ,  G01S13/58 ,  G01S13/931

Abstract: A vehicle radar sensor utilizes Frequency Modulated Continuous Wave (FMCW) radar signals that incorporate non-uniform FMCW chirps having chirp profiles that differ from one another to sense one or more parameters of one or more objects in a field of view of the radar sensor. The chirp profiles may differ from one another in various manners, e.g., based on starting frequency, repetition interval, duration and/or slope, and among other advantages, may be used to enhance sensing of various parameters such as range, Doppler/velocity and/or angle.

公开(公告)号：US20240377541A1

公开(公告)日：2024-11-14

申请号：US18779906

申请日：2024-07-22

Applicant: Aurora Operations, Inc.

Inventor： Stephen Crouch ,  Chunshu Li

IPC: G01S17/931 ,  G01S13/58 ,  G01S17/89

Abstract: A multiple input multiple output (MIMO) radar sensor encodes or decodes radar signals generated by multiple MIMO transmitters using a mixture of sub-set digital codes that discriminate between different sub-sets of MIMO transmitters and Doppler-division codes that discriminate between different MIMO transmitters within each of the sub-sets.

公开(公告)号：US11536801B1

公开(公告)日：2022-12-27

申请号：US17512521

申请日：2021-10-27

Applicant: Aurora Operations, Inc.

Inventor： Chunshu Li ,  Stephen Crouch

IPC: G01S7/35 ,  G01S13/34 ,  B60W60/00 ,  G01S13/931 ,  G01S7/40

Abstract: A vehicle radar sensor utilizes Frequency Modulated Continuous Wave (FMCW) radar signals that incorporate non-uniform FMCW chirps having chirp profiles that differ from one another to sense one or more parameters of one or more objects in a field of view of the radar sensor. The chirp profiles may differ from one another in various manners, e.g., based on starting frequency, repetition interval, duration and/or slope, and among other advantages, may be used to enhance sensing of various parameters such as range, Doppler/velocity and/or angle.

公开(公告)号：US20220381878A1

公开(公告)日：2022-12-01

申请号：US17684952

申请日：2022-03-02

Applicant: Aurora Operations, Inc.

Inventor： Stephen Crouch ,  Chunshu Li

IPC: G01S7/35 ,  G01S13/931 ,  G01S13/36

Abstract: Time-division quadrature sampling may be used in a pulse-modulated continuous wave (PMCW) radar receiver circuit, e.g., as may be employed in various types of radar sensors used in automotive and other applications, to enable a quadrature sampling circuit to sequence between digitally sampling different complex components of a received radar signal at different times.