TECHNIQUES FOR RANGE AND VELOCITY MEASUREMENTS IN A NON-DEGENERATE LIDAR SYSTEM

摘要

A light detection and ranging (LIDAR) system is provided that includes a first optical source and a second optical source configured to emit respectively a first optical beam and a second optical beam that are nondegenerate and are chirped antiphase and at least one tap configured to split each of the first optical beam and the second optical beam to generate a first local oscillator and a second local oscillator. The LIDAR system further includes lensing optics to direct the first and second optical beams toward a target and collect reflected light from the first optical beam and second optical beam incident upon the target into a return path, the reflected light being collected into a return optical beam comprising a first return signal and a second return signal, and a first optical detector and a second optical detector configured to detect a first beat frequency generated from by mixing the first return signal with the first local oscillator and a second beat frequency generated from mixing the second return signal with the second local oscillator.