The three-dimensional imaging pulsed laser radar system using Geiger-mode avalanche photo-diode focal plane array and Auto-focusing method for the same

摘要

PURPOSE: A three-dimensional imaging pulsed laser radar system and an auto-focusing method for the same are provided to realize an auto-focusing function. CONSTITUTION: A pulse laser unit(110) generates laser pulse. A transceiving optical system(120) receives scattered laser pulse. An imaging optical system(200) receives and collects scattered laser pulse. A signal detector(140) is Geiger-mode avalanche photo-diode focal plane array and changes the collected laser pulse into an electric signal. A signal processor(150) measures time of round flight information of the laser pulse. An image processor(160) generates a three-dimensional image signal.