US 12,066,535 B2
Monitoring signal chirp in LIDAR output signals
Behnam Behroozpour, South San Francisco, CA (US)
Assigned to SiLC Technologies, Inc., Monrovia, CA (US)
Filed by SiLC Technologies, Inc., Monrovia, CA (US)
Filed on May 16, 2020, as Appl. No. 16/875,987.
Prior Publication US 2021/0356592 A1, Nov. 18, 2021
Int. Cl. G01S 17/34 (2020.01); G01S 7/4912 (2020.01); G01S 7/4913 (2020.01)
CPC G01S 17/34 (2020.01) [G01S 7/4913 (2013.01); G01S 7/4918 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A LIDAR system, comprising:
at least one optical component configured to output a system output signal that travels away from the LIDAR system and can be reflected by an object located outside of the LIDAR system, the LIDAR system configured such that the system output signal and a tapped signal each includes light from an outgoing LIDAR signal; and
a control mechanism configured to control one or more process variables of the system output signal, the control mechanism generating an electrical process variable signal from the tapped signal and using the electrical process variable signal to control the process variable,
the process variable signal including an in-phase component and a quadrature component, and
the control mechanism being configured to multiply the process variable signal by a local signal that includes an in-phase component and a quadrature component.