Pseudo-Random Coding Technique for 3D Imaging

NASA Goddard Space Flight Center has developed a high-resolution 3D imaging LiDAR system using a resolution-enhanced pseudo-random code technique that improves the ranging resolution by an order of magnitude with the same transmitted optical power. This new approach uses a spread spectrum time-resolved method, which has been widely used in the field of radar and telecommunications and the technique is also known as random-modulation continuous-wave (RM-CW).