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公开(公告)号：US20220390561A1
公开(公告)日：2022-12-08
申请号：US17870566
申请日：2022-07-21
Applicant: Aurora Operations, Inc.
Inventor： Zeb Barber , Randy Reibel , Devlin Baker , Emil Kadlec
Abstract: In some implementations, a light detection and ranging (LIDAR) system includes a laser source configured to provide an optical signal at a first signal power, an amplifier having a plurality of gain levels, at which the amplifier is configured to amplify the optical signal, and one or more processors. The one or more processors are configured to, based on the first signal power and a duty cycle of the optical signal, vary a gain level of the amplifier from the plurality of gain levels to generate a pulse signal, transmit the pulse signal from the amplifier to an environment, receive a reflected signal that is reflected from an object, responsive to transmitting the pulse signal, and determine a range to the object based on an electrical signal associated with the reflected signal.
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公开(公告)号：US12253632B2
公开(公告)日：2025-03-18
申请号：US17870566
申请日：2022-07-21
Applicant: Aurora Operations, Inc.
Inventor： Zeb Barber , Randy Reibel , Devlin Baker , Emil Kadlec
Abstract: In some implementations, a light detection and ranging (LIDAR) system includes a laser source configured to provide an optical signal at a first signal power, an amplifier having a plurality of gain levels, at which the amplifier is configured to amplify the optical signal, and one or more processors. The one or more processors are configured to, based on the first signal power and a duty cycle of the optical signal, vary a gain level of the amplifier from the plurality of gain levels to generate a pulse signal, transmit the pulse signal from the amplifier to an environment, receive a reflected signal that is reflected from an object, responsive to transmitting the pulse signal, and determine a range to the object based on an electrical signal associated with the reflected signal.
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公开(公告)号：US11947017B2
公开(公告)日：2024-04-02
申请号：US17956389
申请日：2022-09-29
Applicant: Aurora Operations, Inc.
Inventor： Devlin Baker , Stephen C. Crouch
IPC: G01S17/931 , G01S17/58 , G01S17/894
CPC classification number: G01S17/931 , G01S17/58 , G01S17/894
Abstract: Techniques for controlling an autonomous vehicle with a processor that controls operation, includes operating a Doppler LIDAR system to collect point cloud data that indicates for each point at least four dimensions including an inclination angle, an azimuthal angle, a range, and relative speed between the point and the LIDAR system. A value of a property of an object in the point cloud is determined based on only three or fewer of the at least four dimensions. In some of embodiments, determining the value of the property of the object includes isolating multiple points in the point cloud data which have high value Doppler components. A moving object within the plurality of points is determined based on a cluster by azimuth and Doppler component values.
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公开(公告)号：US20240192379A1
公开(公告)日：2024-06-13
申请号：US18587208
申请日：2024-02-26
Applicant: Aurora Operations, Inc.
Inventor： Devlin Baker , Stephen C. Crouch
IPC: G01S17/931 , G01S17/58 , G01S17/894
CPC classification number: G01S17/931 , G01S17/58 , G01S17/894
Abstract: Techniques for controlling an autonomous vehicle with a processor that controls operation, includes operating a Doppler LIDAR system to collect point cloud data that indicates for each point at least four dimensions including an inclination angle, an azimuthal angle, a range, and relative speed between the point and the LIDAR system. A value of a property of an object in the point cloud is determined based on only three or fewer of the at least four dimensions. In some of embodiments, determining the value of the property of the object includes isolating multiple points in the point cloud data which have high value Doppler components. A moving object within the plurality of points is determined based on a cluster by azimuth and Doppler component values.
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