Laser Radar System and Method for Acquiring Target Image

摘要

The present invention relates to a laser radar system and a target image acquisition method, comprising: a light source for irradiating a laser beam; An optical deflector disposed between the light source and the target and configured to irradiate a laser beam irradiated from the light source to another position of the target over time; A photodetector for detecting a laser beam reflected from the target according to the irradiation of the optical deflector, wherein the photodetector includes: Sqrt (2) x P _RBS + 2 x D _RBS ≤ D _DA ≤ 2 x D _lens And a light receiving detection surface having a diameter D _DA satisfying Equation (4 / [pi]) x wavelength x F_number D _RBS D _lens . Where P _RBS is the distance between the receiving laser beam spots, D _RBS is the diameter of the receiving laser beam spot, D _DA is the diameter of the light receiving detection surface, D _lens is the pupil diameter of the receiving optical system, wavelength is the wavelength of the laser, and F_number is the receiving optical system. F number according to diameter and focusing.