Patent ID: 11874401
Assignee: LUMINAR TECHNOLOGIES, INC.
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 22:
23. A controller in a lidar system comprising:
one or more processors; and
a non-transitory computer-readable memory coupled to the one or more processors and storing instructions thereon that, when executed by the one or more processors, cause the controller to:
determine an atmospheric condition at or near a geolocation of a vehicle associated with the lidar system, wherein determining the atmospheric condition includes:
receiving an indication from a receiver of the lidar system of at least a portion of a duration of a return light pulse, wherein the at least a portion of the duration of the return light pulse includes a duration of a falling edge;
comparing the indication of the at least a portion of the duration to a threshold duration; and
in response to determining that the at least a portion of the duration exceeds the threshold duration, identifying fog, sleet, snow, rain, dust, smog, exhaust, or insects; and

in response to determining the atmospheric condition, provide a control signal to the receiver of the lidar system to adjust one or more characteristics of the receiver to compensate for attenuation or distortion of return light pulses associated with the atmospheric condition.