公开(公告)号：US11858533B2

公开(公告)日：2024-01-02

申请号：US17494188

申请日：2021-10-05

Applicant: AURORA OPERATIONS, INC.

Inventor： Stephen Crouch ,  Zeb Barber ,  Emil Kadlec ,  Ryan Galloway ,  Sean Spillane

IPC: B60W60/00 ,  G01S17/931 ,  G01S17/34 ,  G01S17/58 ,  G01S7/481 ,  G01S7/4912

CPC classification number: B60W60/0025 ,  G01S7/4811 ,  G01S7/4817 ,  G01S7/4912 ,  G01S17/34 ,  G01S17/58 ,  G01S17/931 ,  B60W2420/52 ,  B60W2552/05 ,  B60W2552/53 ,  B60W2554/4029

Abstract: An autonomous vehicle control system includes one or more processors. The one or more processors are configured to cause a transmitter to transmit a transmit signal from a laser source. The one or more processors are configured to cause a receiver to receive a return signal reflected by an object. The one or more processors are configured to cause one or more optics to generate a first polarized signal of the return signal with a first polarization, and generate a second polarized signal of the return signal with a second polarization. The one or more processors are configured to calculate a value of reflectivity based on a signal-to-noise ratio (SNR) value of the first polarized signal and an SNR value of the second polarized signal. The one or more processors are configured to operate a vehicle based on the value of reflectivity.

公开(公告)号：US20220024487A1

公开(公告)日：2022-01-27

申请号：US17494188

申请日：2021-10-05

Applicant: AURORA OPERATIONS, INC.

Inventor： Stephen CROUCH ,  Zeb Barber ,  Emil KADLEC ,  Ryan Galloway ,  Sean Spillane

IPC: B60W60/00 ,  G01S7/481 ,  G01S17/931 ,  G01S17/58 ,  G01S7/4912 ,  G01S17/34

Abstract: An autonomous vehicle control system includes one or more processors. The one or more processors are configured to cause a transmitter to transmit a transmit signal from a laser source. The one or more processors are configured to cause a receiver to receive a return signal reflected by an object. The one or more processors are configured to cause one or more optics to generate a first polarized signal of the return signal with a first polarization, and generate a second polarized signal of the return signal with a second polarization. The one or more processors are configured to calculate a value of reflectivity based on a signal-to-noise ratio (SNR) value of the first polarized signal and an SNR value of the second polarized signal. The one or more processors are configured to operate a vehicle based on the value of reflectivity.

公开(公告)号：US11921236B1

公开(公告)日：2024-03-05

申请号：US18121967

申请日：2023-03-15

Applicant: Aurora Operations, Inc.

Inventor： Zeb Barber ,  Randy Ray Reibel ,  Sean Spillane

IPC: G01S7/484 ,  G01S7/4861 ,  G01S17/931

CPC classification number: G01S7/484 ,  G01S7/4861 ,  G01S17/931

Abstract: A light detection and ranging (lidar) system for a vehicle may include an input optical path, a first optical path, a plurality of second optical paths, a first optical amplifier, and a plurality of second optical amplifiers. The input optical path may be configured to receive a beam from a laser source. The first optical path and the plurality of second optical paths may be respectively branched from the input optical path. The first optical amplifier may be coupled to the first optical path and configured to output a local oscillator (LO) signal. The plurality of second optical amplifiers may be respectively coupled to the plurality of second optical paths, one of the plurality of second optical amplifiers being selectively turned on to modulate the beam received through a second optical path and output a modulated optical signal of the beam.

公开(公告)号：US11619716B1

公开(公告)日：2023-04-04

申请号：US17888364

申请日：2022-08-15

Applicant: Aurora Operations, Inc.

Inventor： Zeb Barber ,  Randy Ray Reibel ,  Sean Spillane

IPC: G01S7/484 ,  G01S7/4861 ,  G01S17/931

Abstract: A device may include an input optical path, a first optical path, a plurality of second optical paths, a first optical amplifier, a plurality of second optical amplifiers, and a control circuit. The input optical path may receive, at one end thereof, a beam from a laser source. The first optical path and the second optical paths may be respectively branched from at the other end of the input optical path. The first optical amplifier may be coupled to the first optical path. The second optical amplifiers may be respectively coupled to the second optical paths. The control circuit may selectively turn on one of the second optical amplifiers to output a modulated optical signal of the beam. The control circuit may turn on the first optical amplifier, in synchronization with turning on any one of the second optical amplifiers, to output a local oscillator (LO) signal.

公开(公告)号：US20240230855A1

公开(公告)日：2024-07-11

申请号：US18437761

申请日：2024-02-09

Applicant: Aurora Operations, Inc.

Inventor： Zeb Barber ,  Randy Reibel ,  Sean Spillane

IPC: G01S7/484 ,  G01S7/4861 ,  G01S17/931

CPC classification number: G01S7/484 ,  G01S7/4861 ,  G01S17/931

Abstract: A light detection and ranging (lidar) system for a vehicle may include an input optical path, a first optical path, a plurality of second optical paths, a first optical amplifier, and a plurality of second optical amplifiers. The input optical path may be configured to receive a beam from a laser source. The first optical path and the plurality of second optical paths may be respectively branched from the input optical path. The first optical amplifier may be coupled to the first optical path and configured to output a local oscillator (LO) signal. The plurality of second optical amplifiers may be respectively coupled to the plurality of second optical paths, one of the plurality of second optical amplifiers being selectively turned on to modulate the beam received through a second optical path and output a modulated optical signal of the beam.

公开(公告)号：US20240053449A1

公开(公告)日：2024-02-15

申请号：US18121967

申请日：2023-03-15

Applicant: Aurora Operations, Inc.

Inventor： Zeb Barber ,  Randy Ray Reibel ,  Sean Spillane

IPC: G01S7/484 ,  G01S7/4861 ,  G01S17/931

CPC classification number: G01S7/484 ,  G01S7/4861 ,  G01S17/931

Abstract: A light detection and ranging (lidar) system for a vehicle may include an input optical path, a first optical path, a plurality of second optical paths, a first optical amplifier, and a plurality of second optical amplifiers. The input optical path may be configured to receive a beam from a laser source. The first optical path and the plurality of second optical paths may be respectively branched from the input optical path. The first optical amplifier may be coupled to the first optical path and configured to output a local oscillator (LO) signal. The plurality of second optical amplifiers may be respectively coupled to the plurality of second optical paths, one of the plurality of second optical amplifiers being selectively turned on to modulate the beam received through a second optical path and output a modulated optical signal of the beam.