LiDAR system and method of driving the same

A method of driving a light detection and ranging (LiDAR) system, the method comprising:

• applying a driving signal to a beam steering device;
• driving the beam steering device according to the driving signal and thereby scanning light from a light source over an object;
• detecting light reflected from the object via a light detector;
• and
• performing an optimization operation comprising:
• analyzing the light detected by the light detector,
• calculating a correction value with respect to the driving signal, in order to correct an error of the beam steering device,
• wherein the calculating the correction value comprises using a search algorithm to find the correction value which, when applied to the driving signal results in a beam profile, output from the beam steering device, which has a signal to noise ratio which exceeds a certain reference value.

A method of driving a light detection and ranging (LiDAR) system, the method comprising:

• applying plurality of driving signals, respectively, to each of a plurality of channels of a beam steering device;
• scanning light over an object using the plurality of channels of the beam steering device driven by the plurality of driving signals;
• detecting light reflected from the object;
• calculating at least one correction value based on the detected light;
• applying the at least one correction value to the plurality of driving signals,
• wherein the beam steering device comprises an optical phased array, comprising the plurality of channels, and a signal input unit,
• wherein the applying the plurality of driving signals to the beam steering device comprises applying, by the signal input unit, the plurality of driving signals to each of the plurality of channels,
• wherein the plurality of channels comprise a plurality of groups, each comprising at least one of the plurality of channels organized based on an order in which the plurality of channels are adjacent to each other, and
• wherein the calculating the at least one correction value further comprises calculating a correction value for each group.