公开(公告)号：US20180128905A1

公开(公告)日：2018-05-10

申请号：US15345951

申请日：2016-11-08

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： Mei Ling Cheong ,  Mang Khong Wong

IPC: G01S7/481 ,  G01S7/484 ,  G01S17/93

CPC classification number: G01S7/4817 ,  G01S7/484 ,  G01S17/42 ,  G01S17/89 ,  G01S17/936

Abstract: A scanning lidar suitable for use on an automated vehicle includes a laser, a beam-steering means, and a controller. The laser generates a pulsed laser beam. The beam-steering means steers the pulsed laser beam in a direction within a field-of-view of the lidar. The field-of-view is characterized as rectangular-shaped. The controller is in communication with the laser and the beam-steering means. The controller coordinates operation of the laser and the beam-steering means such that the lidar is characterized by an angular-resolution. The controller operates the beam-steering means in accordance with a first rectangular spiral pattern characterized by an aspect-ratio that corresponds to the field-of-view. The first rectangular spiral pattern causes a scan-segment to be skipped during a present-scan of the field-of-view due to the aspect-ratio. As such, the field-of-view is not scanned entirely at the angular-resolution.