公开(公告)号：US20220236410A1

公开(公告)日：2022-07-28

申请号：US17155217

申请日：2021-01-22

Applicant: GM Global Technology Operations LLC

Inventor： Leon N. AVLAS ,  Nathaniel W. HART ,  Adam L. WRIGHT

IPC: G01S17/02 ,  G01S7/499 ,  G01S17/931

Abstract: A sensor diagnostic system includes a first sensor configured to receive a reflected signal that corresponds to a portion of a transmitted signal transmitted from a second sensor and reflected from a surface, a wavelength determination module configured to determine a first wavelength of the reflected signal that is indicative of a second wavelength of the transmitted signal, a wavelength shift detection module configured to determine a shift in at least one of the first wavelength and the second wavelength, and a sensor health analysis module configured to perform diagnostics on the second sensor based on the determined shift.